If it takes that much time, why even look for it
how much would you like to designate? how far are they?While I completly agree that things are taking way too long I dont think its fair to say its 5% since people seem have forgotten that while orginally, a LOT of characters had some scenes, with a LOT of characters it was 1--3 per character, out of 44 character from which there are scenes(though I am not sure Its fair to count all of them because among them is Rump) something like 33 had 1-3 scenes.
Out of 44 only 3 characters had 10+ scenes(Jenny, Debie and Roxxy), 2 had 8(Diane and Eve), 2 had 6(Odette and ivy), 2 has 5 scenes(Tammy and Ms. Okita) and 3 had 4 scenes(Maria, Consuela and Josephine)
How things changed for Jenny in tech update, her scenes went from 20 to 27.
For Debie it went from 13 to 23 + 2 unfinished scenes, while also improving art quality and while making animations way smoother.
It doesnt look like dev plans to rework all routes at least for now, teacher scenes were pretty much only remastered instead of reworked, so It should be going faster after Debie route is complete.