If we knew what to expect, it would be engineering not science. The fact is, we have tried having expectations, most notably supersymmetry, and those haven't turned out very well because we are literally venturing into the unknown. Part of the fun is that sometimes a wild theory works out (GR, Higgs) and sometimes it doesn't.

I think if we push the energy frontier one more time, there's no real reason to expect us to find anything -- but there's also no reason for us not to find anything.