The T2K-II program will upgrade the beam power of the main ring at J-PARC to 1.3 MW and will also renovate the T2K near detector ND280. With these two components the T2K collaboration will establish the value of leptonic CP violation at the 3σ level for a significant fraction of the possible δCP values. An upgrade of the near detector is essential to achieving this goal as it can be used to reduce the overall statistical and systematic uncertainties to the level of less than 4%. We have developed an innovative concept for this neutrino detection system, comprising the totally active Super-Fine-Grained-Detector (SuperFGD), two High Angle TPC (HA-TPC) and six TOF planes. The SuperFGD, a highly segmented scintillator detector, acting as a fully active target for the neutrino interactions, is a novel device [1]. We have demonstrated that this detector, providing three 2D projections, has excellent PID, timing and tracking performance, including a 4π angular acceptance, especially important for short proton and pion tracks. The HA-TPC will be used for 3D track reconstruction, momentum measurement and particle identification. In the summer of 2018 we tested prototypes of the SuperFGD, the resistive Micromegas and the ToF in a CERN PS test beam with excellent results. We have recently completed a detailed TDR describing all the components of the ND280 Upgrade [1] and the project has been recently approved by CERN as part of the Neutrino Platform (NP07).