JPP and Suh- Can we afford to lose them?

We have a defensive line that is a lot of fun to watch. Excellent against the run, and brings plenty of pressure off the edge. We all know Barrett is coming back. I feel like the last few weeks JPP and Suh have been making an excellent case for returning. With as many questions that we have on this roster, can we afford to lose two vets with solid production? I personally hope they bring them both back, as well as Barrett. I feel they both have more in the tank, and I love the way our front seven has rounded out. Thoughts?