There's a recent trend in science & physics articles about a "nightmare scenario" related to the absence of new discoveries in the field of physics. Especially, the absence of new particles that scientists hoped to discover with the Large Hadron Collider.
Here's a recent article about it :
_https://www.quantamagazine.org/20160809-what-no-new-particles-means-for-physics/
The bottom line is that particle physics is at a dead end, basically in the same state today as it was 30 years ago, and there's no new theory ahead to explore.
Here's a recent article about it :
_https://www.quantamagazine.org/20160809-what-no-new-particles-means-for-physics/
Physicists at the Large Hadron Collider (LHC) in Europe have explored the properties of nature at higher energies than ever before, and they have found something profound: nothing new.
It’s perhaps the one thing that no one predicted 30 years ago when the project was first conceived.
The bottom line is that particle physics is at a dead end, basically in the same state today as it was 30 years ago, and there's no new theory ahead to explore.