So-far, it seems like the plan is to still have multiple major XBOX AAA Exclusives be highlights for XBOX, PC, and XCloud for the year--but there will be instances where games hitting certain points or smaller titles will be able to then be multiplatform.
Hellblade II, Flight Sim 2024, Indiana Jones, Avowed, and Clockwork Revolution all seem to be specific games that will be getting exclusive releases for XBOX platforms for instance.