What makes me say that was the cinematic which was listing your choices you've made during Act 1 while the main character was sailing towards Grymforge.
That was the end of early access content at that time. Now Grymforge has been added, and both grimforge and original map have exits leading to the path to moonrise. Clearly current I assume the end of act1 will be moonrise itself.
I assume act 2 will take us to Baldur's Gate itself. Act3 - finale? Which how big the game is, I can't imagine there being too many acts.
