I think that Naruto and Sasuke as well as Kakashit and Sakuretard are in the limbo world.
My reasoning: 2nd Hokage is shown in this panel, able to sense Kaguya's presence, but she's not there.
We know that Naruto is able to sense limbo but can't see it, this is probably the case with Tobirama.
If they really were transported to another dimension, they'd be long gone and there wouldn't be any trace of them.
HOW THEY'LL DEFEAT HER:
Obito is with them for a reason. He will transport Naruto to the Kamui Dimension, then to the real world. Sasuke will remain in the desert limbo, and from there they will attack her from both dimensions with their left and right hands, sealing her.
My reasoning: 2nd Hokage is shown in this panel, able to sense Kaguya's presence, but she's not there.
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We know that Naruto is able to sense limbo but can't see it, this is probably the case with Tobirama.
You must be registered for see images
If they really were transported to another dimension, they'd be long gone and there wouldn't be any trace of them.
HOW THEY'LL DEFEAT HER:
Obito is with them for a reason. He will transport Naruto to the Kamui Dimension, then to the real world. Sasuke will remain in the desert limbo, and from there they will attack her from both dimensions with their left and right hands, sealing her.