Boudewijn Rempt just published a long (4000 words) blog post about the state of Krita: where it is coming from and what it is up to for the upcoming 2.0 release. Lots of cool new features that I am looking forward to play with.
Well worth reading and kudos to the team!!
PS: and in the meantime, it looks like GIMP 2.8 will have some support for 16bits / pixel. Exciting times ahead.