With LHC currently at 13TEV design energy, and a planned higher luminosity upgrade, is the current plan to double the magnet strength for the current existing LHC to arrive at a 28-33TEV collider, or is it building a completely new future 100 TEV collider near Geneva where LHC is housed but in a completely new tunnel or in China? Are future lepton collider plans, such as one in Japan, linear or circular? My understanding is that Japan is planning a linear lepton collider, a Higgs factory at $12 billion but that either CERN or China plans a circular lepton collider. Lastly, has there been any research of either a hadron collider or lepton collider using lasers, with performance significantly beyond current LHC? lasers were one researched way at arriving at nuclear fusion, currently colliders use super conducting magnets to accelerate hadrons at great expense and complexity. has there been any engineering proposals using lasers to assist in the collision?