Someone already has a anti-tilt bolt carrier I believe. Stag maybe?
Many of the piston designs have anti-tilt features to mitigate the wear as much as possible, but non, as far as I am aware, can entirely eliminate it. The best ones it seems wear some and then stop.
Honestly, that's just what I've picked up in a few of the more technical discussions, as I have not researched gas piston ARs to the level I would if I was the slightest bit interested in purchasing one.
The way I see it, you get to the point of diminishing returns rapidly when trying to "fix" all of the AR defects that many complain about. It's better to just design a new rifle and do it right from the ground up, while keeping some of the features of the AR rifle if you can/want (i.e., magazines). From what I understand, that's what Magpul did, but the rifles are simply not available. The rifles that are out there, such as the XCR, are lacking. I have not seen a SCAR nor heard any reports from people I trust.
That's why I am sticking with the standard DI AR, albiet a well built one with quality parts. Until something drastically better comes along, I see no reason to switch, and I see no reason to buy into a "band-aid" solution that is drastically more expensive (you must remember that up until recently, CMMG did not have their gas piston setup and all of the piston ARs were rather expensive).