I tried playing early access BG3 with two different characters, so far.

Two things I wonder, once Larian releases the final edition of the game.

1) Will I be able to migrate both characters to the same story, later on?
as if they meet in the same camp and can travel together?
(Including equipment, but of course not duplicating any quest or magical item)

2) Will I be able to adjust some abilities, now that I know better how the game works ?

What is Larian´s plan for people who want to continue from early access to final release, from where they left off ?