What I would like to see in general, not necessarily in the next EA patch - is more information about Act 2.
Otherwise
° the ability to maybe speak or interact with the Minotaurs and or the & Spectators, so that it does not necessarily boarder in a fight
° maybe the possibility to enlist some members of the Flaming Fist as extra compagnions, so they would become "familiars" to some partymembers for the remaining Act I at least on the surface
° a way to pacify the Harpys and make them useful for something? ( even though they have low intelligence

)
° tell Ethel she is sexy ( Lmao xD )
and far far more in the future
° to have patron's & deitys play a much bigger role for Warlocks & the faithful classes
I find it pretty nice for example that Wyll is practically an OP Warlock even though his abilitys do not reflect it.
But his patreon, Misora I assume - is a pretty medium classes fiend/Devil and seems to aid him even personally to some extend.
That is much more than just such a flying little "evil kid Devil"

we can summon.
Makes me hope for something like summoning stronger beings as a custom made Warlock, possibly even your own patreon temporarily as well - who is also a Cambion or the like.
In general I find it very nice when there is a visual progress to the might of the spells one is focussing on.