You can see the 6z gfs already made some pretty significant changes wrt not burying energy deep in the base of the trof out in the southwest but rather rotating it NE along the trof and trying to extend/push it east.
CMC trying to setup the Ides of March storm at h5
GFS looks interesting as well.
Still have a 10-day window...maybe shaving 1 or 2 days off the front of that soon.