If you use the new upgrade with Lunge and Slash it will make you crash during story mode combat. I had taken the ability off the characters action bar. Now Dragon Age Inquisition works without crashing. This seems to have been happening for a while. So for right now it's the only fix.
The lung and slash is the problem... My game suddenly started crashing when it didn't do so before... Turns out if you have the trespasser dlc and the latest update, the effortless lunge upgrade compared to the usual great lunge upgrade causes problem... I switched to great lunge and have had no problems
