I'm all for "the sky's the limit", but it would be really great to know beforehand how already existing save files would be affected (or not), because I won't start a completely new playthrough at this point. If you upload a new version that utilizes the plugin you mentioned, I'll gladly check my save file's compatibility (maybe you can even fix my save file if it can and must be fixed). While I've played hundreds of RPG Maker (MV) JRPGs, I find myself in uncharted waters when it comes to such significant changes mid-playthrough. On the other hand, I'm curious and would really like to level up past level 99, so yeah, go for it and let's see what will come of this.
Yeah luckily I haven't had a update to the one database page in a long time that usually breaks saves and I dont plan to ever update that page again so I'm hoping future updates won't require restarts!
EDIT: I've tried the level cap thing and it just doesn't seem to work at all so I think I might just lower some xp on the quest bosses specifically or maybe the repeatable dungeon bosses I will figure it out I guess I just need to make the leveling longer.
Despite playing so many RPG Maker JRPGs, I'm not proficient in using RPG Maker software, but I read somewhere that "Yanfly Core Engine" should enable you to implement a higher level cap. While I'm glad that my playthrough won't be affected, I hope you'll find a satisfying solution when it comes to future games. Just throw in a few permanent stats-up items here and there in this game, which you're probably already planning to do, and I will gladly continue my party's ascension. :)