Arena's just don't pop as fast as the others and not as many play. If you think about it there is less incentive especially since RBG's are out. That mentioned. Queue pops have been in the 2-5 minute range for me as well and if I play 20 games, I'll probably see 10 different team. This is queuing in primetime evening slots though when you would imagine getting the most out of it. So while not the hotspot compared to other options, it's still something to play. Unsure to what level though.