May be an obvious question but would like to clarify:-
Pathfinder Roleplaying Game Reference Document said
Gestalt (Su)
Nine lantern archons can fuse together as a full-round action, becoming a single Large entity that is more powerful than the individual archons that make up its parts. Looking like a whirlwind of dancing firefly lights, : archon, good, and lawful subtypes; archon traits (aura of menace DC 16); 2 light rays (2d6); DR 5/evil and magic. The archons can remain in this form for 2d4 rounds. When the gestalt separates back into individual lantern archons, its remaining hit points are divided evenly among them; if it had less than 9 hit points, some of the component archons die when the gestalt ends.
Does that include the Air, Elemental and Extraplanar subtypes too?
The text seems to infer using a Large air elemental from the bestiary as base stats but add the archon abilities to it as a template style addition.
Subtypes are not 'powers or abilities' as far as I can tell.