So, here's my thoughts on viper.

Cal Kestis and other various Star Wars glams are on the menu. Dual wielding swords and a saber sword, medieval style? Oh you better believe the PotD weapon extractions are coming with light saber cosplays.

More personally, if they can manage something closer to NIN gameplay from the era when I feel it was at its best (Heavensward,) I'll love the class. I used to main ninja before ninki, jank, and bloat more or less ruined it for me, and I'd like to see that style come back, regardless of my general ire towards melee positionals for my belief that they make boss design less interesting overall.

But, eh, FFXIV's generally bad modern encounter design is secondary to the possibility of having a melee DPS that's more NIN-adjacent than MNK/SAM. We'll see.