<!-- Okay people with a sense of humor, if you REALLY think you're going to switch around D and R just for fun to make it say "Very Large Hardon Collider", think again -->The Very Large Hadron Collider (VLHC) is a name for a hypothetical future hadroncollider with performance significantly beyond the Large Hadron Collider.
There is no planned location or schedule for the VLHC; the name is used only to discuss the technological feasibility of such a collider and ways that it might be designed.
Given that such a performance increase necessitates a correspondingly large increase in size, cost, and power requirements, a significant amount of international collaboration over a period of decades would be required to construct such a collider.