The summit has traxxas 17mm wheel hexes, which are compatible with ordinary 17mm wheels or the traxxas 17mm wheels with notches.
But this is a trivial upgrade for the E-Revo, as long as you change it over to 17mm hexes, you can run the wheels.
Otherwise, everything is interchangeable, except for the other stuff already mentioned above.

The summit's rear A-arms might be different too, maybe angled toward the back? One way to see for certain is just to go the the traxxas website and compare from the parts explosion graphics.