Yes, it's planned, hopefully by next update in v0.7. Also the save pages are basically infinite so you can't possibly run out.
Viewing post in How hard can it really be? comments
no, not by a long shot. but if i create a file for every nsfw scene, then it fills up extremely quickly. i've just completed the amiya ambushed by underworld scene in chapter 1, but that's about the 23rd scene of the game. If we assume that this pace keeps up through the whole game, then i'd have run out of save files by chapter 2/3.
(9 pages * 6 slots per page - 1st page cuz of gameplay saving = 48 save files; 23/48*100% = ~48% of available save files used, in the hypothetical of 9 max save pages)