I can't say that I know anything about when it going to be ready but common sense tells me that there probaly wont be another teaser release but a common release when the authors feel they want to release it.
So as always, don't ask because one when it's ready they will release it..
I probaly don't know more then you do about dolphin, probaly less... I do know however that they will release it when it's ready, and until it is ready they wont release it. I say again, they won't release it until it's ready. And when it's ready, they will release it!