Its not expected, or even rumored. The only rumor that I've seen is Walsh getting the Athletic Director job, but that was just hypotheticals tossed around by PSU fans.
I'm not sure how I feel about Walsh and getting a replacement. We know what we can expect from Walsh....7-4 and missing the playoffs. We will lose close road games that we should win, but we will have a good defense and will win at home. If we bring in another coach, either he could do really well after a couple years, as a new coach almost never does well his first year. The other side, is that this new coach could be worse than Walsh. At least we are winning some games right now. That could change with a new coach.