I would too like a clear answer.
I find it hard to believe that they'd require auto attacking to have a key or mouse button held down. That defeats the purpose of Auto Attacking, which is a pretty major feature of Dragon Age that most RPGs don't have these days.
Having to hold something down doesn't sound like auto attack, and I can't imagine why there wouldn't be a toggle. If the system works in Tac Cam(where you click and they auto attack until you say otherwise), I don't see why it can't have the same functionality for third person. I want to play in both, but I don't want to have to suddenly hold down my mouse button, essentially crippling the functionality of that button(as any PC player knows, LMB is used for a ton of things). It just seems really strange that they'd take something so simple and worked so perfectly, and completely mess it up, making it more complicated in the process.
I also couldve sworn that in the PC stream, I saw the Inquisitor doing basic attacks and Mike didn't have his finger on LMB , but I suppose it couldve been on one of the keys, I wasn't looking there.