Higgs was the main science objective of the LHC, though many, if not most, particle physicists expected the LHC to see something more. Keep in mind LHC has yet

Higgs was the main science objective of the LHC, though many, if not most, particle physicists expected the LHC to see something more. Keep in mind LHC has yet to collect most of its data as colliders tend to collect the most data near the end of their life, after all the upgrades and operational tweaks etc have been applied. As such there's still a chance of a discovery one way or another. That said, from what I've gathered, while particle physicists are less enthusiastic about these next-gen collider projects given what we've learned from LHC so far, there's also an acknowledgement that the expertise to build these colliders might be lost if we take a break from building colliders. The alternative could be very, very costly, as many lessons would have to be relearned the hard way.