Something I've always wanted was a special power (maybe an accolade or something) that would let you, once a day, bring along a toon from my account on a mission as an NPC. Foe example, two of my toons are Abe and Abbi Kadabra, who are, in the backstory I created for them, married. Wouldn't it be amazing if they could actually fight side by side?
I've also always wanted something I think Champions Online might've had, and that's the ability to have a villain from my account occasionally interfere in my hero's mission, and vice-versa.
I don't know if any of these things are even possible, but I figured I'd put it out there. Thanks for reading!