Something I would really like to see in this version of WHFRP is the inclusion of evil/chaos careers and races. An Adventure pack would be perfect for this sort of thing. I've been playing WHFB for years now, started on a mixed chaos army when 6th ed beastmen were released. Now sadly that army must be redone, but that's not the point.
I also got into the MMO when it came out last august, dropping it around february, because the end game just isn't that fun. But I enjoyed playing my marauder a lot.
I would love to recreate that experience on the table top. I don't think I'm alone either, I would be willing to bet that there are a ton of players of both WHFB and the MMO who would love to continue playing Chaos/Greenskins/Darkelves/Ogres/Undead. So Fantasy Flight, please, please, please develope an evil career pack!