There's zero chance they slow down with MSGP. They might as well not have acquired studios unless there's a lot more studios coming. They're trying to have more first-party games, not pivot the problem from first-party to second-party.
I am with you on that I think Game preview, IDX and MSGP is the place were they are scouting for studios and future partner so MSGP will still be important but maybe more supporting internal team (Like Dlala and Rare partnership: first with support on SOT than Battletoad than who know).