With the discovery of the Higgs Boson, some have been calling it the end of experimental particle physics for our generation, due to the fact that all of the particles predicted by the standard model have been found (the W and Z Bosons in 1983 and the Top Quark in 1995) and no new physics is expected at the energy ranges we can probe. I have also generally heard from my friends who work in experimental particle physics (or, at the very least, accelerator physics) a similar story, that there isn't too much left to be discovered.
Is this an accurate assessment?
What about dark matter particle models, like the axion/axino? Can the LHC (or SLAC, etc) probe enough of a range to perhaps shed light on this cosmological problem?
Can we hope for any more insights into beyond the standard model theories from current accelerators?