Several new kits. Perhaps upgradable kits.
Daily quests.
Make cosmetics a bigger part of the game. (kill effects, arrow trails, death effects, trails, auras, etc.) Would be cool if there were milestone rewards, could also be from crates, or purchasable (in-game or on webstore like a cosmetic chests).
Improve ancient and legendary crates.
PVP based events. Survival games, sky wars, tournaments.
Upgrade clans.
Team duels.
Exp reward for kills.
Monthly leaderboard things maybe?