I think there is some degree of Nerd rage going on with the announcement which is further bolstered by the ridiculous notion of some that see the Hard Cover books as Vindication that they were right.
Based on the current release schedule the bits format isn't being dropped in the immediate future. We've got several new boxes coming out for it that continue support for this version of the game. Also the Hard Cover books still use the same core rules but will have some supplemental rules that are needed to play the game without using all the bits. This may be something as simple as a bigger character sheet with areas on it that you just drop counters onto.
Realistically the bits method of expansion will eventually come to a point where very few new bits are needed. We don't need a never ending supply of new careers, that's just silly. Perhaps 10-20 more careers (few basic with the bulk of advanced) would basically round out the set. New action cards are welcome but not really needed unless they were planning on making this game an LCG where new action cards trump old action cards. That I think is something most would agree is a bad idea. We don't really need more location cards as there are already plenty and a few here and there in some adventure box sets rounds it out. We don't really need more status, wound or other misc. cards for the most part. So other then the priest box set and maybe one more box set to finish off advanced careers (both normal and magic using) the card based line is largely complete when it comes to the mechanics of the game.
That means all that's left is supplemental rules, settings and adventures. Supplemental rules don't need to be on cards, they never had. Setting books wouldn't need cards beyond maybe some setting or item cards and adventures don't really need new cards either. Gathering Storm has a few unique cards but really they aren't needed. They could have just put out the scenario in pure book format and nothing much would have been lost. This will become even more true after the next few card releases come out.
The important part is that FFG is supporting WFRP they are rounding out the bits game very well with a few critical boxes that fully flush this version of the game. The HC books will be easier/cheaper to produce and easier to stock for retail, which is important to some stores. Some gamers will definitely prefer the book version of the game. We bits lovers, who would never consider playing that way now, can't ignore the fact that they probably have a player or two in their group that wouldn't spend money on their own box set but likely would pick up the Hard Cover rules. Personally while I have no intention of buying the HC version of the book I'm hoping that it does come out in PDF format because that would actually make a PDF version of the rules usable on their own.
In the end the Bits and HC versions based on the information on hand create two versions of the same game and should get all the rules to the same spot. Then they can concentrate on putting out setting/scenario material in one format that works well with whatever medium of the game you prefer.
Lastly for people wanting to do convention style gaming the HC version will make that a lot more palatable. Speaking personally the thought of random strangers touching my bits gives me the cold sweats.
