We haven't made plans to set up a Patreon for the game, but we do intend to launch a Kickstarter for funding of the complete game. If you're interested in contributing, we'd be happy to have your pledge once its up.
As far as fetishes in the full game, at the risk of sounding evasive, I honestly don't think of most sexual content in terms of fetishes, and I'm not really sure what counts. Are threesomes a fetish? If you want to join the discord, I'd be happy to discuss plans for the game's content at more length.