I say "likely" because normally if a federal judge is already overseeing a case, then any case involving the same issue goes to them. But there's a random allocation process that happens first, so you may see this initially before a different judge.
— Michael Acton (@MActon93) June 12, 2023
The filing asks the US District Court for the Northern District of California for a temporary restraining order that could keep the companies from consummating the acquisition while the FTC's in-house court is deliberating on the deal.
FTC to Seek Federal Court Order Temporarily Blocking Microsoft-Activision Deal | CNN Business
There's a real chance that it may go to the same judge who keeps smacking down the Gamers Lawsuit.