The interacting trajectory-based reformulation, and ensuing TDQT methodology, hence allow one to recover key nuclear quantum effects necessary to describe the correct quantum dynamics of both adiabatic and nonadiabatic processes. In future, we envisage several clear developments of TDQT, to extend calculations to higher dimensions (for which the theoretical equations have already been derived), and to combine it with TDCT (which is straightforward using trajectory-Lagrangian-based action extremization). Treatment of nonadiabatic processes with several nuclear degrees of freedom will only allow for setting the TDVP to zero by gauge choice along a single dimension, but this does not undermine in any way the relevance of what is presented here as quantum trajectories are gauge-invariant. In addition, the possibility of combining the TDQT approach with CT-MQC, the coupled-trajectory mixed quantum-classical algorithm derived from the exact factorization, is currently being explored.