The last time? aaaahahahaa... no. There are several phenomenon that require energy levels that only stellar objects can throw off. They'll be asking for bigger colliders even when they're dedicated space stations firing what would be equivalent to weapons of mass destruction at each other.

Unless scientists can figure everything out just by observing space, there will always be a demand for a bigger collider. Since scientists like to control variables and don't like waiting for random events that they then almost have to reverse-engineer to explain (without most all of the sensitive detectors built in to these colliders), there will always be a demand.