So the problem is obviously too many dps and not enough tanks/healers, so I'm sure it's been thrown around that people should just level up more tanks but obviously that isn't an ideal solution.

A better solution would be to have an 8 man dungeon capable of being solo tanked. Obviously CM can be solo tanked at the moment but it's still not easy for a brand new tank to solo it, so why not just modify CM a bit, remove the adds on the bosses and increase the bosses HP and change the default queue from 2 tanks 2 healers and 4 dps to 1 tank 1 healer 6 dps.

You could even raise up AK and WP to 8 man groups instead of 4 adding four more dps. Add more hp to all the mobs/bosses to compensate for the extra dps and it would still be completed in the same amount of time as before.