Well OS/2 v3.0 became Windows NT so sort of succeeded, just not for IBM or in name (unless you count cash registers).
The good news is that if you are feeling particularly nostalgic and have a 16 or 32 bit processor (or emulator), you can relive the OS/2 glory days with ArcaOS from https://www.arcanoae.com/arcaos/ It'll cost you about $130 for a personal license, but if you want it, it's still there, and still supported.
(Still waiting for the x86-64 VMS port to be completed... https://www.vmssoftware.com/products_roadmap.html)
As we all know, transposing each initial by 1 from VMS gets you WNT. Rather like the HAL/IBM Space Odyssey factoid.
https://encyclopedia2.thefreedictionary.com/OS%2f2+NT
Also, Wikipedia "OS/2 NT" redirects to Windows NT.