Imho Raids as casual gameplay loop as well as motivation to actually grind out a stronger team will have much more impact on active player count than Quests and Storyline.
However, why not combine those and build the Story/Quests around the Raids.
The idea of an epic cgi Raids Release Trailer also sounds lit.
The DAO and Team has focused a lot on Arena in the past, with great results.
But I think it's about time to put some focus on casual and f2p gameplay outside of Arena.
Arena isn't everyone favorite gamestyle and as a Yugioh addict I can tell that it's hard to onboard ppl that are already deeply invested into an existing game (TFT, TCG whatever).
I'm here cause I like the idea of the real money market, it adds extra spice. But I'm already crypto fan, the general public is not.