From Tribanda pictures, Spain, in their SERGIO LEONE Y SERGIO CORBUCCI collection, is the recently released ROMULO Y REMO. It's 2.35:1 anamorphic, and pictorially better than the Koch Media version (whose strange aspect ratio looked to be part-way between Letterbox and Anamorphic, and was edge-cropped) or the French Rene Chateau version (which was full-width letterbox, but rather grainy).
There's a choice of English or Spanish Audio, with optional Spanish subtitles.
Quite why Sergio Leone's name is so prominent on the video sleeve, is a bit of a mystery, since he was only one of eight scriptwriters, whilst Corbucci directed.
Presumably it's just a marketing ploy, but if this excellent release is the result, then I don't mind at all.