Frontlines
-Disallow premade parties. made a seperate matchfinding only for premade parties. and I mean disallow it none of that 7/8 can go. It destroyed the wolves den and its destroying frontlines.
-Randomize mobs spawns. would be cool if mobs could spawn all around the arena not just in the middle for more chaos and less repetition.
-Add new maps. This probably wont happen till 2.4 but if they cant get the premade party fixed frontlines will be here to stay and would be awesome to expand it with new battlefields. Also... the new battlefields shouldnt be GC restricted.
-Faster downscaling. This should fix the queue.

Wolves Den
This been ruined for so long its probably beyond saving. Weeks before frontlines was even here I was queued for 8 hours while I was working on my computer and it didnt pop once. But heres a few things that could revive it.

In short Wolves Den pretty much dead but frontlines is a very good concept and with a few tweeks it should be able to last.