Well, yes and no there...
Before he had to stay veyr clost to Voldie to feed him and stuff, and now that he has a body, Peter won't have to do that...
But... he still cannot be seen/recognised by anone other than the DE's... because then they will know that he didnt' die 12yrs ago *14 by now???* and he'll be busted!
OOH, what if Snape goes abck to spy and then sees Peter, and is thus forced to believe Sirius' innosence???

How's ya liking that theory???