I have no special knowledge, other than what he's posted publically. The way I interpret what he's posted is:
- His current priority is cleaning up the '77 digital stereo mix, hopefully in time for Harmy's next release.
- He will continue to work on various projects if for nothing else than to practice his skills (i.e. he's not packing it in after this).
In the no-evidence speculation department, I would personally expect his next projects to be 2.0 versions of his ESB/ROTJ 5.1 purist mixes, because I believe he's said they have occasional phase problems, and ROTJ also has the sync problem--as well as any other tweaks he might have in mind. I think as far as stereo tracks go, the '77 digital stereo one was a bit of a special case, because it was already so close to perfect but for a few very noticeable problems, and was leaps and bounds better than previous 77 stereo tracks. I find the ESB and ROTJ digital stereo tracks to be more incremental improvements, and teeceezy's tracks are unlikely to contain any glaring audible problems like the current 77 digital stereo track.
Or you could just ask him ;)