About "Guest Art and Writing" I guess you will principally refer to your most trusted collaborators support for safeness, so I don't know how likely is involve other more or less notorious artists in the project, maybe to pay. Anyway follows my proposals: Stedilnik, Vibrantechoes which not sure if still active, Fluff-kevlar of ARA OC fame, Das and Sorok17 are mainly known for 3D but they are very good even with 2D stuff, Kittery and FallowWing from "Paraphore" development could writing a cameo.
In the way of guest contributions, I’ll gladly accept fan contributions as long as they aren’t too out-of-place with the rest of the game. Not entirely unlike Monster Girl Quest, I want it to be normal to see various different art styles as you progress through the game. However, I’d really like to reach a point where I can routinely commission artists and writers. I know a LOT of artists that I would love to get work from but that all hinges on how much funding I get, how much they cost and what their availability looks like.
I’ll probably avoid putting 3D assets in the game though. That might stand out a little too much in a 2D game.
-TB