Or it might be at such high energies, that conventional particle accelerators will never observe it. Sterile neutrinos, axions and quintessence particles might

Or it might be at such high energies, that conventional particle accelerators will never observe it. Sterile neutrinos, axions and quintessence particles might have masses in the PeV range. We were lucky with the Higgs, and the W and Z Bosons, and the top quark. Dark matter and dark energy might be a phenomenon in the GUT regime, which we will not observe with particle accelerators. We need more information about the Higgs, because it sticks out like a sore thumb of all the other particles. It is our first glimpse into the underlying fabric of the universe, as the Higgs field is non-zero everywhere and a scalar field. No other (known) particle behaves like that. But a future collider is expensive... just my 2 cents good plot for a scifi movie: aliens measure a different vacuum value of the Higgs field and discover sub-space communications ;-)