Well, honestly i don't care so much about his past, if he comes with another name wanting to try again he is free to do that, at that point he will be just another new dev that will have to build his reputation. Of course that would be pointless if he have to come just to drop the game again after some updates but I believe into giving people second/third/forth chances since people may learn from their past errors. Will he? Honestly we can just hope so, his works were really good quality imho, i would really have more, hoping that he will find whatever he needs to keep working on a project to its end. All in all we (as gamers) can only benefit if he does and coming back with another name would give him less pressure.
My suggestion to
Old DVD (hoping that he still reads here) is to take his time to plan his future game. Evidently something went bad with the past ones, maybe focusing on a single (even if goregeous) protagonist made him feel too cramped after some updates, maybe the issue is this kind of vertical narration or maybe he just find himself stuck due lack of planning the plot in advance. Only he can know what made him quit his past works so just look at those and avoid to do the same mistakes again.