I too dont fully understand why Queens Gauntlet is temp. I mean hopefully it returns every few months if it is. It was compared to SAB and that hasnt returned since april. I kinda wish Queens Gauntlet was something they kept and the game and continued to build on.
However I felt the same way with Bazaar of the Four Winds. Now I dont. That zone needed to be temp. Its entire design is temp. And lets be honest, after a month of having that zone, barely anyone goes back just for the zone. They go back for the games you can play there.
Perhaps this is the reason why Queens Gauntlet is put in and pulled out. However I think for this to work, it should be re-implemented every 3 months or so, with new boss encounters and even completely new changes to the arena to keep things fresh. Tomorrow when queens gauntlet hits, people are gonna be playing for hours and even a few people will have exhausted he content within that one day. Within a month I expect it to be pretty empty. This is the problem that a lot of permanent content has in games though. Every dungeon, raid, or zone in games have this problem. At release, they are super exciting, and then after about a month everyone returns to the main city to go and wait for dungeon ques or in our case its play with box’s o fun around the mystic forge.
So in conclusion, perhaps a periodically returning Queens Gauntlet would be nice! It would continue to give a fresh feel, and a feel of excitement when you know its coming up again. Instead of leaving it in the game and have it dead after a month of gameplay.