I would expect an aggressive attack dog style from Biden. He will attack Romney via Ryan. He will basically be testing the waters for the next presidential debate. Probe the enemy's defenses, see how they respond, see the effects in the polls, and then adjust for the last presidential debate.
From Ryan, I expect he will handle the aggressive attacks in the same manner that he handled Debbie W-S.
"No matter how bad it gets, if you're still alive it's just another bad day."