There was a lot more green screen and CGI work used in TFA than is generally noticed but the characters are more compelling (even if the plot isn’t). And the integration is more subtle (most of the time).
Stylistically though you could take a good fanedit of the PT and ran TFA next they would sit quite well next together as 21st Century films.
The only real impediment would be the digital camera work on Ep2 and Ep3.