I don't see RS doing anything at the deadline that might weaken the club for the playoffs, so it would have to be a wash at least for this year. That probably means some guys about to be UFA like Gill, Sykora, Fedo, Satan, Scuderi may not get moved because no GM is likely to give up much except a middling pick or a 2nd or 3rd tier guy also about to become UFA.
I can see a minor deal or two for not-too-high draft picks. Farm needs some re-stocking anyway and Pens are likely to have a real surplus at D, assuming no further injuries.
Lot can happen between now and the deadline and the Pens very well may need a winger or two. Next year, it's really up in the air as far as which present wingers will be back and who may not be.