I'd at least want like, the exchange to get Rinser weapons for weapons badges, the weapon camos that were unique to the 2021 badge exchange, and some form of access to a Twisted with Hatred trigger.
Rinsers for weapons badges give anybody casually dabbling in PSO2-Classic access to 2nd-best-in-slot gear without the extra fuss of gathering up the materials for one of Zig's many exchanges. Getting a Fluxio weapon from Violent Tremor is almost as good, but I feel like it requires a skillset somebody might not be interested in developing just to break into PSO2-Classic.
With the Urgent Quest schedule a thing of the past, and Twisted with Hatred sharing the exact same Urgent Quest notification as Face of the Abyss, relying on random urgent quests just to run the hardest content in the game is just not something anybody wants to have to rely on. And content like this absolutely needed an option to approach it on your own group's terms and schedule, I had a group of friends that couldn't make most of the scheduled Twisteds due to scheduling conflicts, but we could have done it at some other times if we were able to run it on our own terms.
also I liked the Lynd-series weapons and I just want that camo again finally