The Inquisitors are far more effective antagonists in the game and the expanded literature than in Rebels anyway.
I’m really hoping the physical action will revolve around Obi-Wan being pitted against a Inquisitor/Purge trooper combo, and do something new with the rumored rematch with Vader, hopefully a vision or something (much like the way Yoda dueled a projection/illusion cast by Sidious in TCW) that still manages to bridge together the inconsistencies between ROTS and ANH.