I don't think that it happens, but IF it does, this is the way I think it would work:
MS would split EA.
EA Sports with all the sport games like Fifa, Madden, NHL, Tiger Woods would be one part of the company and this would remain independent with multiplat releases.
MS would buy the other part of EA. All the other games EA published or developed by EA would still be huge. Battlefield, Dragon Age Origins, Left 4 Dead, Dead Space, Spore, Sims, Mirrors Edge are great titles.
Imagine not having GamePass on your console...







