I don't think Rosberg has the pace to do it... not yet.
Lewis is pacing the Ferraris, though... and he is in very clean air behind Ricciardo.
If he manages this stint well, he should at least have fourth sewn up by the end of the race. Getting second or third will take a whole lot of work, though.
Would like to see how Vettel's full race pace compares to Kimi's. Kimi isn't quite as quick as Seb, but he's good on tires... that might play into his hands by the end of the race. One wonders if team orders will allow any racing between the two...