My opinion has changed, but it hasn't got any better I'm afraid.
My original reaction was a knee-jerk "what the hell are they thinking of..." based purely on the press release. I leapt to some conclusions and ranted a bit and I'm not ashamed to admit it.
Now that they've started releasing some actual information, I still don't like it.
I'll admit that some of the game mechanics sound interesting, but for me they're outweighed by all the problems I can see and there're more problems with every new bit of information. I haven't made up my mind on the dice yet, they could be revolutionary or they could be hideously overcomplicated and we won't know until we actually get to try them.
This game requires space to play. You really need to have all the players round a table, and a sizable table at that, so that they have room to lay out all the various components that they're using. Stance tracker, career sheet with various attached cards, tokens, the party sheet with attached cards and more. This is no longer a game that you can play from the back of a book balanced on your knees, which means it's one that my group physically can't play unless one of us moves house and buys a bigger table.
All the extra components means more things that can be lost. And unlike D&D 4E, it doesn't look like the information on the cards will be reproduced anywhere else so if you lose one it's lost. Dice are less of an issue, you can always add sticky labels to a regular D8 or whatever and draw the symbols on.
I don't like the approach being taken with the background. Reiklander humans, dwarfs from a single hold (that has never been mentioned in the background before unless I'm remembering it wrong) and no halflings. It seems like the game will be aimed at a must smaller area of the Old World, possibly just Altdorf and its environs, and if this is the case it would take away the main reason I play WFRP in the first place.The Warhammer World is one of the best realised campaign settings in existence, and limiting your scope to one tiny corner of it just seems wrong.
I don't like the lack of character options. 30 careers in the core box, which includes basic and advanced careers seems like a woefully small number to me.
I don't like the fact that your choice of career limits your roleplaying options, at least initially, just through the fact that it dictates what stances are available to you. This kind of thing should be based on your character's personality, not their profession.
Personally, I don't care about the price. It's a drop in the ocean compared to what I tend to spend on games anyway. However most of my players tend to like owning their own copy of the rules so that they know what they're doing when they play, and for them $100 is prohibitively expensive. Yes it's the same price as buying the 3 D&D core books, but if you want to you can just buy the PHB for D&D which is a lot cheaper and you don't have that option here. Plus WFRP3 will have VAT on it, which makes it more expensive still.
So yeah, still not interested.
I'd be more interested if this wasn't Warhammer. If it was some generic fantasy background, and if you could use the new mechanics without needing all that room to lay out components, then I'd definitely be interested enough to give it a try.
However the limited background, lack of character options and the necessity of all the components just makes this a "no" for me.
I am feeling completely opposite. I stated off, like you did, quite skeptical about a new edition. 2e was great, why change it and what's up with all the components? Is this a boardgame now?
However, the more I see about this new edition, the more I like it and the more excited I am about it.
Let me try to talk about your concerns:
SPACE: I suppose it might take up more space, assuming that you lay everything out. Of course, nothing prevents you from just stacking your cards together, and putting them on your career sheet, etc to minimize the space needed. My group already uses a big table since we use miniatures, so we've got some room. Still, if your group doesn't play where there's space, you could indeed end up having some issues. Perhaps clearing some floor space and playing on the floor?
LOST COMPONENTS: Very true, although as of yet there is no official word if the card information will also be summarized in a book. Regardless, I expect within a week or two of the game coming out that someone will provide a .pdf or other list of cards and their information. Jay did say in the seminar video that the cards are visual tools to aid gameplay.
BACKGROUND: There is plenty of material to allow settings other than Reikland. I expect that this area is just the initial focus of the core set and expansions will add to it, just as in every other RPG. There is absolutely nothing preventing you from running a game in a different area of the world. The Core Set could only focus its information on a limited area, and where better than the core of the Empire? It is actually no surprise to me that they recommend dwarves from a specific younger hold. It has already been mentioned in WFRP that usually only younger dwarves interact with humans from the Empire. I doubt there is anything actually rule-specific that prevents a dwarf PC from being from somewhere else. I expect, similar to the setting, they simply chose a single specific hold to make things easier and allow them to provide detailed background information about the hold. As for halflings, well, I honestly don't care for them. They are definitely planned for an expansion, and I expect it won't take too long for that expansion to come out either. Again, this is a Core Set. It is, of course, focused on a small area to allow FFG to give detailed information (in its limited space) about that area. There is plenty of 2e sourcebooks that still have usable information about other parts of the world.
CHARACTER OPTIONS: I agree, it seems a bit small ... but it is more than a lot of other RPGS. Also, there are additional careers in the Toolkit, which is coming out at the same time as the Core set. So ... I don't think you're as limited as you think.
ROLEPLAY: I think you have the wrong impression of the stance mechanic. It is a representation for how the PC approaches a task, and is a mechanic to allow a character to change dice when attempting to accomplish tasks. It can be changed, from my understanding, by the player before every roll for every task. It is in no way a mechanic to force roleplay. Additionally, it was mentioned with the recent diary, that careers can purchase additional stance pieces, so a Troll Slayer could buy conservative stance pieces, they just cost advance points. Mechanically, a Troll Slayer doesn't tend to be a cautious or methodical thinker/doer ... for them cautious might be being at neutral or a single reckless stance. I think, rather than considering the stance as 'forcing' a player to roleplay, you might instead consider stances as a guide to how the typical person of that career would act. The PCs are PCs, they are not required to roleplay to match their stance exactly. Rather, the stance is a mechanical means to allow the player to alter the dice they use for a roll.
COST: Indeed, I think this is probably the big hurdle. Especially, as you pointed out, for a player that just wants the rules. Perhaps FFG will create a smaller 'player set', or perhaps FFG will allow for purchase of individual books and cards. I hope so. Of course, the book will give you the basics of how to play, but won't give you any of the true player information, so that is included on the career cards and action cards, etc, so a player really needs more than just the book to play.