Re: bbPress 1.0 alpha
My completely uninformed guess is … no. I wouldn’t wait. Install something and see how it goes.
If you log in here, you can see the number of open tickets by milestone: https://trac.bbpress.org/report/3 . There are quite a few open for 1.0. Also, there hasn’t been a 1.0 beta or release candidate either. So, just my guess, no.