So does anyone know what happened to this?
I’m surprised there still isn’t a retail 4K version of Once Upon a Time in the West.
All I could find on the net was an apparent cinema showing of a 4K version (wonder if it’s from the print mentioned in this thread?). According to their Facebook page (https://www.facebook.com/alamogreaterny/posts/1512622278790712), this was shown in July 2017:
https://drafthouse.com/show/once-upon-a-time-in-the-west-4k-restoration