I want vi, cait, jinx, and jayce added so bad.
That'll open up so many more team comps once we get 3 more gunslingers and 2 more brawlers xd
Also, Jayce better have his own background because he's so beautiful.
Vi could literally have any of her abilities and would fit into the gamemode well. Jinx could have her passive, q, w, or r and be very effective. Cait could have her q, but other than that and her passive I don't see her other abilities working out. Jayce...well...all of his abilities from both forms would work except his e.