According well-known leaker eXtas1s, Mafia: Definitive Edition and Wargroove 2 are coming to the Game Pass library around mid-August. The latter, which is currently a Nintendo Switch console exclusive, hasn't been dated yet - but 2020's Mafia remake is supposedly arriving on August 13th.
Last week, the same source outed an August 8th Game Pass date for Crash Bandicoot N. Sane Trilogy - an arrival that's not been confirmed yet, but we're expecting to hear about the addition during tomorrow's Xbox Game Pass roundup from Microsoft.
In recent months, this insider has correctly leaked the Xbox Game Pass additions of Brothers: A Tale of Two Sons, Call Of Duty: Modern Warfare 3 and Octopath Traveler 2, so while we can't take this news as gospel just yet, we'd say there's a pretty good chance that both of these games — along with the Crash trilogy — are added to the service next month.