I feel like Compulsion, Double Fine, and to an extent inXile and Undead Labs are really slept on whenever people talk about the current XGS, seems like these ones are hardly ever mentioned. If anything I think they are some of the most exciting to think about because they're the wild cards really, they could be working on anything.
We Happy Few had so much potential, so i'd love to see what Compulsion can do with the full backing and support of Microsoft from the start, and Double Fine has a history of producing some of the most unique and creative games out there. Then even for some of the studios where we might assume what they're working on next, like State of Decay 3 with Undead Labs, it's still exciting to see the new things they can achieve in these franchises with the new resources they now have. Just like inXile with Wasteland 3 too and the rumored big new RPG they're working on next.