The optimistic answer is state variations for existing scenes (which might just be text changes), backgrounds for scenes missing them and maybe, just maybe, the state event for the loli sister which would include at least one new scene.
The pessimistic answer is everything mentioned above, except the state event. This is the most likely to happen. So just backgrounds and new text. Totally worth eight months of wait time. Oh boy...
This is all extrapolation on my part based on his Trello page and what Doc himself has said, even to me as a response specifically, so I'm not talking out of my ass. Most so far seem to agree with my conclusions but I guess we shall see on saturday if skelly boy delivers on his "hard date." Man, that sounds kinda raunchy.