The new generation long-baseline neutrino oscillation experiments, DUNE in US and Hyper-Kamiokande in Japan, will start in a few years with a five standard deviation sensitivity to the discovery of the leptonic CP violation and the determination of the neutrino mass ordering. Being affected by a much lower statistical uncertainty compared to the ongoing experiments, T2K and NOvA, the suppression of systematic uncertainties becomes critical. This highlights the need for new detector technologies to be deployed at the near detector complex and novel analysis techniques to precisely measure the electron neutrino cross section with massive near detector, resolve the so-called nuclear effects by tracking very short protons and reconstructing the neutron kinetic energy, and detect neutrino interactions in different target nuclei. The R&D program at ETH Zurich aims to develop new technologies towards a multi-tonne highly-segmented scintillator detector as well as a high-resolution scintillating tracker. The most recent developments as well as new analysis methods will be discussed.