Let me first say...I love my Tri-Star.
However, I find it really difficult to pack anything that is more than 3" deep.
What we need is a one compartment bag the size of the Tri-Star. In fact, it could be a Tri-Star with the dividers removed. It would open on one end and the cover would lie flat, hidden backpack straps, and external pockets.
Wait, you say, what about the Aeronaut. Well, that could work but I would want the end pockets removed and that space added to main compartment. (and made slightly smaller.)
I know, I know, there are tons of these bags available...but none the quality of Tom Bihn.
It could be called a "Uni-Star."