Personally, if they are going to go into effort of adding mini games, I would rather they focus on extremely easy to implement/royalty free/games everyone and their grandma knows.

Stuff without NPC/AI to encourage play with others.

I’m talking Chess, Checkers, Backgammon, hell even generic Mario-party-esque mini games.

The big kicker, allow players to queue for duties while in mini games, and if you should hit #1 in the queue, it just holds your place until the minigame is done.

So, queue…see 30 min wait (bleh), play a round or two of checkers and when done, dungeon pops right away.