Superman lore already created a "Beyond the Corner", it's called the Phantom Zone. By now it's just full of musicians, mainly rappers from Nerdcore, and Team Four Star xD
The area could be called the Prodigal Aether (kinda mystical sounding area). Loved the reaction Don and Ren and DPS and crew....... why do you keep doing this shit to us, fricken blowing our mind with sheer lyrical amazingness?