When we look at the model shots kept in the SE, they have far better camera work, shot composition, and motion than the shots replaced in the SE. Granted, there are a few shots that are better in the OOT (e.g., the X-Wings’ descent and Luke emerging from the smoke), but I think improving the shots within the confines of '77’s shot styling would be best.
A lot of the shots from '97 show their age and their limitation (e.g., every X-Wing is Red 2, the overly-fluid motion in the S-foils and arrival shots, and the mere graphical limits of '90s CGI models). Replacing them with CGI or models that better mimic what was done in '77 would be best.