The only reason the 1911 was dropped was because of NATO and powers that be wanted a easy answer for ammunition logistics with other nations involved.
That being said just look what the special forces went back to when they pretty much have thier choice of any handgun. A 1911 style in a 45acp. It speaks volumes for the design and the round. Remember large capacity mags have been around for a long time , Browning High Power.
When I started to think about my carry sidearm years back one of my mentors would always remind me ," do you plan on missing alot?" Truer words were never spoken.