Sort of. This has probably been mentioned, but I couldn't find it on a forum search, so... blame the forum search and not me if it has.
A sidebar on pg. 81 of the recently-released Manual of Exalted Power: Alchemicals gives a brief listing of currently-prominent Alchemicals in Autochthonia. Although it's name-only, guess who the last name in the list is?
Elegant Nova of Progression.
So apparently we do have a canonical Exalt playing a role in the plot after all.
A sidebar on pg. 81 of the recently-released Manual of Exalted Power: Alchemicals gives a brief listing of currently-prominent Alchemicals in Autochthonia. Although it's name-only, guess who the last name in the list is?
Elegant Nova of Progression.
So apparently we do have a canonical Exalt playing a role in the plot after all.