Agreed. It would also go a long way toward transparency to the customer, which has been quite a sore point since September.
All transparency does is set customers up with the expectation that this sort of available information is what the should and deserve to be getting. And if by some chance something happens when they aren't given this kind of information on a particular project, they pitch a fit.
At no point do 95% of the people think 'well, I've been getting much more information than I really expected... I guess I'm very, very lucky and I'll count my blessings about it and won't be surprised if it can't continue at this pace.' Instead, the first time they don't get it there'll be a mad rush to the WotC and ENWorld forums decrying the company and threatening to never play this game again and blah blah blah.
Quite frankly... the way some people vomit up complaints about every stupid little thing around here... I wouldn't release ANY information about timetables and just let the whiners be presently surprised when they walk into Barnes & Noble and find a new book on the shelves. Now granted that doesn't work from a marketing standpoint... but at least it'll bring expectations of what players "deserve" to be told back down to realistic levels.