Topic point.
There's no mention of them in the update post only that emotes/Gear carry over.
In the follow up video it claims PSO2 Classic will be given a graphical update as well, however seems odd as PSO2 will have classes not available in NGS, but if it does actually get a graphical update to match NGS it would be entirely possible for costumes and accessories to carry over.
My doom sense says it was purposefully excluded to get people to buy gacha then say womp womp
So what exactly is happening as theories are cheap official information is gold?