I don't see a reason to update the pack, it already stands on it's own quality wise. If you bored and have enough time we can have a chat on a tool that is finished and I need an artist to fill in the blacks (where we split revenue on sales on that one). Or other projects.
But if you want to go solo, well keep on churning out good stuff on a consistent basis and consistent style I would say go hero/monsters (topdown primary, sidescrollers are more abundant). These areas are still a blind spot on itch.io. We developers and all the time in need of that. Or hope in my discord and we can have a quick chat if your up for that.