an idea i had was like id feel like such a badass if i could jump on a cliff or wherever and have an option to do like a back or front flip, like your d pad emote options but only when your in the air your emotes change to do something else.
What they need to do is make the left buttong, the only customizable emote button, become an emote selection branch. 4 cutom emotes by holding left and pressing a face button (A, B, X, or Y; square, triangle, X, O) for emotes. If possible, you could have 4 emotes per button for 16 total. Right for dances, up for positive emotes, down for negative emotes (think of sitting as being exhausted from all the defeat), and left for "other." Thought of this a while ago.
P.S. I'd like Destiny 2 to make R3/right-stick-button do something besides check players. I'd prefer using the ghost for more things, including that, as well as only having the ghost out to find resources and make a radar pulse every few seconds for dark areas.