Future (Transverse) Spin Physics At Jefferson Lab

The studies of GPDs and TMDs with polarizations at 6 GeV at Jefferson Lab have already shown great promises. The 12-GeV spin program will significantly advance our knowledge about the three-dimensional structure of the nucleon in the valence quark region, and the QCD dynamics responsible for the structure. With the possibility of a future electron ion collider with polarized beams, the next frontier of QCD will be reached. This proceeding paper will focus on future studies of TMDs using polarizations.