They shouldn't "acquire" studios, rather build new ones!
They could do with a new FPS series (or elevate killzone to a higher level), and something like motorstorm, that would really flesh out the variety of their first party lineup.
its much harder to build new studios. but I see the appeal they usually work out better.
they probably imo should build a medium sizedd ~120 employee studio to work on either FPS games or arcade racers from the IPs they have
I mean syphoon filter FPS stealth game would be amazing too. or resistance.
i would also take a new motorstorm game