Ya I can see it both ways, on one hand the studio has made 3 great Prime games but on the other hand that was over a decade ago and many of the people who made those games are no longer with the company.
I mean staff can certainly adjust to a new genre. They'll also probably hire a lot of new staff. They've already hired some new staff (I think I heard something of Halo 5 and Naughty Dog devs, but I could be wrong). Either way, i'm mostly worried about if we'll get any Retro game in the near future. I hope their unknown project wasn't cancelled.