Time to see if this rumour holds any weight.
Xbox will hold a game showcase at 6pm UTC / 8pm CEST (Sunday).
The rumour of Microsoft acquring IO has also resurfaced in the last couple of weeks. This rumour started late 2018. I don’t see it happening.
I’m more leaning towards that the unannounced IP is a Microsoft exclusive, or at least published by Micrsoft. I don’t think that’s far fetched.
It’ll be shown here
https://youtu.be/1qK302stSP0