We are still missing actual key items that effect the games meta. I think fashion is currently the least of our worries.
We just got Darkweave weapons which is top in both versions as well as the units with 155 base stat boost.
We HAVE the end-gane meta that JP has now. I don't get why people argue otherwise now.
SU is missing sweets still.. sweets we should have gotten 2 episodes ago. Vital sweets for certain pets.
Also, a Katana exists in game that we don't have access to yet that it great for specific classes to travel with, as it allows the use of a specific movement Braver PA, although that is really a speedrun/Time attack thing, mostly.
So some sweets for pets and one katana. Is there anything else? To me that seems very minor and can hardly call enough evidence to say we're out of the meta. Moreso with advance classes being the top played class.