No, I haven't been able to que for the Feast for while now (maybe a month). The best way is to either contact other PvP players via PvP Discords and see when they're queing, or putting up custom matches in the Party Finder. With Astragalos being dead too, I've noticed Frontlines isn't as bad currently as that's the only real consistent PvP going on right now. It's still a good way to practice your rotations. The ques should start picking up once we're out of preseason.