I doubt they would announce or even negotiate a deal while under the current scrutiny they are experiencing. If Ubi wants to sell and MS isn't ready, I would fear they end up being picked up by Tencent or Embracer. Given that choice, I would choose Embracer. They've shown an interest in at least keeping their IPs alive. The amount of ports they've done for the Darksiders games, for example. Hell, they are doing a re-release of Risen.