With D&D 4e I took a good long look at the rules before I decided I didn't like it. I could do that for several reasons:
1: Entry cost for D&D 4e is much lower than WFRP 3e (cost of PHB vs cost of boxed set).
2: It's a book that I can flick through in the shop or borrow easily from a friend without needing to reference all the cards for careers, tactics etc.
Also, WotC actually make D&D 4e sound good. Read the promotional blurb on their website and it sounds like a roleplaying game (and I'll actually give it the benefit of the doubt and admit that it is, just not a very good one). FFG make WFRP3 sound like a board game with no board.
If I see anything to make me change my mind (i.e. rulebook, or positive reviews from someone who's actually played it and who's opinion I trust) then fine, but until then I'll hang onto my pessimism. After all, it's all I have based on the info that FFG have given us.
Oh, and I'm not just saying this because it's different from v2. I own more RPGs than I can easily count, I'm always open to new systems and if this looked anything like a decent system I'd be in there like a shot. I've always had more money than sense when it comes to buying new games. For me to say that any new game looks too bad for me to even consider spending money on it really is a pretty damning endictment.