The Large Hadron Collider (LHC), which has given us so many joys (such as the detection of the Higgs boson) should work until 2035, however the international community of physicists has been working for years on the next great machine that will unravel the nature of the smallest.
That machine could be the Compact Linear Collider (CLIC) , which would measure 44 kilometers in a straight line (the LHC, the world’s largest accelerator, is an underground ring 27 kilometers long).
The decision of whether to build it or not will be made by 2020 and until 2025 CERN will be busy with the LHC improvement project. In other words, if the project is approved, the CLIC would not begin to be built until after 2025 . CLIC could be located near CERN, although there is no decided employment for it yet.
CERN has reported that building just the first stage of this linear accelerator (there would be three) would cost roughly 50% more than the LHC. Cross our fingers.