Keeping Savard costs you nothing, and the upside is potentially huge if he comes back next month. Keep him unless/until you need the IR spot for another player.
Your goaltending looks solid to me, with two definite starters. I know that many people are thinking Bernier will take over the top spot in L.A., but there's truly nothing to suggest that at this point. Mason is a starter and Ellis will split time with Smith. Nothing wrong with that, especially if you're in a roto or points-based league.
As for your original question...if you have an IR spot free, then Connolly could be worth it. Otherwise, virtually all of the forwards on your team are producing right now (with the possible exception of Wolski). If anything, you could use another defenseman for security.