(Michael Prescott Um Kirt Dankmyer has Cross World which I think is trying to do that sort of thing.)
I have sort of a dumb statement: I have enough games. What I look for now is inspiration. One of the cool things you can get from PbtA games is inpspiration for stuff in other PbtA games. For example, I once pulled in the Sagas “Tempt Fate” basic move for a nanomachine riddled character – the 7-9 result gave 1-hold to the nanomachines to be spent based on the character doing what the hive mind wanted.
This is where my brain goes now: Will this new thing help inspire me in the games/genres/worlds I want to play in? I can;t usually tell up front from kickstarters, so have been passing