Is the Byrne's Superman in another earth of 52 multiverse?

[Permanus]

If there *is* an "Earth-MOS," then I hope my Cosmic Treadmill comes with a map so I can avoid it like the plague.

While you're on that, do you think there's any chance of convincing Barry Allen to come back?

[SteamTeck]

Don't worry he will because  I thought he died well and Wally was a worthy successor and more interesting character. Of course its possible they could frustrate us both and probably would if I bothered to read anymore.

[RonFez.net]

I was just thinking how it would be interesting if they ended the byrne superman saga by showing that he was really a clone of the original kal-el or something like that.  It would add a nice twist since the his krypton had so many clones.