The only real way to solve DPS queues

[ADVSS]

That may be one solution, but I feel that the lack of tanks primarily stems from the role being the least engaging/exciting. The entirety of this game's combat can be summarized as "Stand here/Don't stand here" and heavily impacts tanking, since their gameplan is Flash/Unleash/OP and then pretend to deal damage (Unless you're WAR, then you deal actual, noticeable damage...). But there would need to be core changes to the combat system to rectify that.

yep. Sure is fun when healer and dps dies at 3% and youre not gonna be able to finish the boss. But of course I couldnt care less if healers and tanks deal comparable damage for a role that is hard to get people into because is more responsibility. I think that adding more dps slots to dungeons would help alleviate the issue quite a bit, outside of doing some points system for a "chaos roullette
, which could be fun.