With current EA theres enough xp to get to level 6. i did it with mods and 5e xp rules.
The ps5 trailer had characters at level 8, this is likely at the end of act 1/ start of act 2. I dont think they would spoil a lot of act 2 content.
Its EA so everything is subject to change. I note the EA for DOS2 certaintly changed over time but the max level remained around 8-9 with 1.0.
Players like levelling and getting new abilities.
Assuming act 1 is capped at level 7 or 8, and i think many players would like levelling in act 2 and 3, even 4 more levels in all of acts 2-3 seems low, therefore level 12 is likely at the bottom end.
So act 1 8 levels, act 2 4 levels and act 3 2 levels= level 14.

I have no problem if they talk to Wotc about removing or homebrewing certain high level spells that wont work/ remove the fun from the game (e.g. simulacrum).

Personally i thought levels 5-6 was reasonable for act 1.

Is it august yet?