Please keep dungeons around as a recruiting tool
Dungeons have been good, the rewards are solid, and the recent changes have made them better when they launched. They're fun once in awhile, if not daily for some people.
But I find that the best use of dungeons is for recruiting. If you have a potential recruit, start up a dungeon with them and you can quickly tell how good or bad they are. After a few rooms, you can tell whether you want this person in your alliance or not. The dungeon is basically like tryouts. No more wondering whether a person plays well or not before getting them into your alliance. Or finding out they can't hold their own and having to kick and recruit new people.
I hope Kabam can keep dungeons around in some form permanently. Even without infinity dust, those shards, or whatever. Keep the milestones as just gold and I'll be happy. It's the best recruiting tool this game has.