Yeah, another reason i think it will have more NTR is because the amount of girls and now Drew is in the picture. If you leave it at only 1 bad end per Drew and Hunter to have 2 bad ends per chapter, we'll probably never see all the combinations of bad end match ups before the game finishes. So to speed things up, It's possible that he gives Drew and Hunter two each.
I also agree, that to keep things "fair", if he is increasing Vanilla content, he's probably increasing NTR too. To keep the game in the same 90% Vanilla, 10% NTR per update he's been doing. If NTR didn't keep up this update, It would have been like 95% Vanilla and 5% NTR.
Not hard numbers of course, since I don't know how much content vanilla or NTR are getting this update. Just saying from the past updates since the dawn of the start of PV.