12 宇宙とは異なる空間に浮かぶ惑星
Planets floating in different spaces from that of the 12 universes
As I said before, calling "different space" (異なる空間), does sound more how they call what is generically here a different dimension, especially considering that they put stuff like the World of Void.
Also, looking into the complete scan
They put the nameless planet in the "neutral space between universes" in the same "space different from that of the 12 universes" as the World of Void and Zen'O palace. So yes, here it's completely in the meaning of a different dimensional space and can be used as proof that the neutral space between universes is like a "neutral dimension between universes", unless the World of Void is now seen just as another part of the same universal space that all 12 universes share and you can get there with a spaceship.
Translation by
@Executor_N0 about the neutral space between the Universes