Honestly, I see him going down the same route as AL with the endings in that a lot of the game's ending will be universal, it will just swap characters in and out of certain scenes based on your path and choices, then there will be the unique scenes which isn't much different to how branches already have their own uniques scenes. Most everything else like Affinity and some if not a lot of choices could probably easily just be covered with dialogue differences and the odd variation in renders.
All of that should probably make being able to do all the epilogues far less complex than if he were to make every path 100% unique, and sure, DPC may not necessarily go with such an easy route, but he is also someone we've seen plenty evidence of making many scenes mostly variable. So him making the epilogues mostly variable would fit too, imo, and make it very possible to do all endings in one episode, particularly the biggest ones like the MGs and the most prominent SGs. If he did any sort of DLC epilogues to add to it then it would probably be for characters like Cami, Mel, Sarah, Sally, etc, the extremely side girls.