More maps and more varied random objective waves.. but I wouldn't be shocked if either of these were coming.
What I would really like, and I'm not sure is just asking for something already in the cards, is a way to buy the stuff you want outright without having to get it randomly. Have it cost an arm and a leg to buy but make it so that if you want, say, the Quarian Infiltrator you can either get it via the random loot boxes or you can get it by grinding out 1000000 credits and just buying it. The random CCG element is actually cool and fun, IMO, but it shouldn't be the only way to get stuff.
What I would really like, and I'm not sure is just asking for something already in the cards, is a way to buy the stuff you want outright without having to get it randomly. Have it cost an arm and a leg to buy but make it so that if you want, say, the Quarian Infiltrator you can either get it via the random loot boxes or you can get it by grinding out 1000000 credits and just buying it. The random CCG element is actually cool and fun, IMO, but it shouldn't be the only way to get stuff.