Pumpkine is a part of a future original project that I've been cooking for a while. I've also been active on the Pillar Chase 2 Fanon Wiki making monster concepts including Pumpkine's. Here's her page:

https://pillarchasef.fandom.com/wiki/Pumpkine

As for Copper 9 Act II, I have been working on a seperate portion of the game that is completely new and it obviously won't be revealed until much later down the line.

I will also start working on the new trailer since we're nearing 200 followers for this game.