I don’t think they should or would change the canon. It would be much more easy two have 2 different canons if the old EU was continued in a different adjacent timeline. The could even adapt some of the comics, and novels into animation under the Legends imprint.
Would the original cuts of the OT also count as Legends? Since the Maclunky edit is the official canon along with Han shooting second.
Yeah, I personally consider the original versions as the “Legends cuts” of the movies (at least pre-PT Legends). The Thrawn trilogy books are sequels to those versions of the films.