OpenAI is doomed; in fact, it has ceased to exist; it's an empty shell, and its ressources provider is now its biggest competitor.

But I doubt MSFT will win this round.

1/ We still don't know why Sam Altman was fired; does MS know? or think they know?

2/ It will take the new team at MS a long time to recreate what they had at OpenAI (what does "MS has a perpetual license to all OpenAI IP" actually mean and entails, legally speaking?); during that time anything can happen.