There’s going to be rage from a bunch of people, but I’ll explain to my best ability.
From missions, we usually get a certain item that may be useful or useless. So, I say we should add some Eggs to the fort! What would these eggs hatch? These eggs will hatch a PokÃ©mon pertaining to the dungeon. But instead of the regular egg hatch, it would be expanded to even more PokÃ©mon of the dungeon.
Now, I know what you’re thinking. It would be broken if you get an Egg Mission in Tanren Chambers. It would render events useless. But, remember the amount of missions we get. Only eight. And, with the rarity of how the eggs would vary, it might take a long time until you get an egg that you want from TC. Mixed in with the regular missions, it would be extremely difficult to find them. So, would it be broken?
Anyways, I’ll allow you to argue over how this suggestion is terrible or okay. I will clarify points that may seem a bit vague, so ask your questions!