Absolutely! This would be great. Another nice side effect of this would mean we would have access to all of the Skirmish battles outside of level 60. Considering I out-leveled some of these skirmishes so fast that I got 2-3 levels while waiting in queue and never got a chance to see them. Also being able to help friends…
The skirmishes simply need to be allowed to be run at lvl 60 and scaled appropriately as the dungeons have been. I queued for the level 54 skirmish today and by the time I hit level 56 (like an hour later) I hadn't even gotten a group yet. Having these only be available for 2 levels and then never again is pure madness.
I would suggest it can be approached from 2 angles: The first being the ability to customize certain aspects of Encounters to make them more or less challenging. If you pay for the D&D site at Wizards of the Coast you can actually go to the Monster List and customize each monster. I would imagine the most important aspects…