Why only 1 more patch? It's clear Larian has loaded the assets for the final 2 classes, but are drawing it out because each PFH is a publicity stunt that gets it more press and viewers and free advertising. Plus, it buys them time to continue to work on the other parts of the game in the Act 2 & 3.
We all know the game will be buggy and unplayable on launch once you leave Grymforge.
