As we're this early in the EA I don't expect to get higher levels(one more would be ok though), new areas or more classes. Their main focus should first and foremost to be fixing current game breaking bugs which seems to be their priority and secondly to take a serious look on the core mechanics of the game and make fixes according to the feedback they've been given so far. Preferably in this order:
1. Put the balance back in combat to where it should be according to 5e rules by lessening the importance of surfaces and barrels / add dc checks for surface hazards / advantage vs disadvantage / remove the changes from cantrips(the only positive one so far imo is true strike) / Remove the HP-bloat and restore the AC to mobs / lower the amount of mobs in some encounters as a low level party shouldn't have to fight 20+ enemies and can mostly only do so right now with Larians unnecessary homebrew additions. / Adhere to class identity by not giving scrolls to everyone, not letting wizards learn divine magic, not giving hide/disengage for free to every class etc.
2. Do something with the short rest/long rest mechanic to make it more immersive. Just by fixing the points above would go a long way to keep casters from feeling the need to long rest after every fight.
3.Make an overhaul of the UI, inventory management, and party formation management as well as fix some pathfinding for companions especially in accordance to surfaces hazards(fire & vines etc) and elevation(autojump)
4. Fix conversations by including the companions in dialogue, give XP for peaceful solutions / successful dc checks, remove multiple dc checks for the same subject outcome, and make some choices concerning the companions made by the player matter like not adding them to the camp if the player never met and agreed to include them on the journey in the first place(looking at you Shadowheart and Wyll)
5. Add more information about abilities, skills, spells and features in character creation and also add a chart what the class will be able to learn throughout the levels. Make the C-creation process more intuitive.
6 Change to loot system and lessen the amount of empty chests etc
TLDR: Fix the game according to the feedback they've been given so far instead of giving us new stuff to complain about. Must of us understood that we wouldn't get the whole game in a couple of weeks when we bought the EA.