I'd really like to see them add minions for the other Arcadion fighters like the Black Cat minion we got last tier. If a first-round fighter that's only a bit less of a newcomer than us gets a minion, I don't see why the other more popular fighters wouldn't have their own as well. They could add a new gil vendor after completing the Arcadion storyline, or have them available for exchange for the normal raid drops. Back in Stormblood you could - and still can! - exchange some of the drops from the normal raids for a housing item and orchestrion rolls, so there is precendent for them adding non-gear related items to raid token exchanges.