 It is an important step as well in the transition to using semi-inclusive or exclusive models in neutrino oscillation physics, as opposed to current inclusive models which use only the final state lepton in their predictions.The successor of the T2K experiment, the Hyper-Kamiokande (HK) experiment, will use the upgraded system of the currently used accelerator and neutrino beamline and upgraded set of the near detector.Apart from that, a new far detector, the Hyper-Kamiokande detector, and possibly also a new intermediate detector will be built.