Agree, I think most likely we pick up some defensive depth. It would be nice to get a clear RHD upgrade over Schmidt and Pionk, but we know that top pair RHD are extremely hard to find and cost a ton to acquire, and even a nice 2nd pair RHD would be expensive and hard to find (non rentals to be clear). Plus we have those 2 on the books next year so that gets complicated as something has to happen in the summer with them if we added someone on the right with term, and we also have DD and BD that need to be addressed (cap complexity).
But I could see another depth D, and maybe the possibility that Ville gets in some games and he possibly becomes a black ace or rotational guy (depending if they feel he's better served as a Black Ace or a part of a Moose playoff team).