Thanks for all the potential ideas.

I was wondering though how big the role of TAR really will be in the Last Battle.

I think Cyndane is planning to trap Rand there somehow, that much is clear. She dare not face him head-on, especially with all his allies and the fact that no one is a match for him. However, in TAR she may be able to destroy or capture him. This may be a potential place where Egwene/Perrin could shine if Rand gets into any trouble. Alternatively they may go after Egwene directly, though this may prove to be a mistake. Then again, Mesaana was nowhere near Cyndane/Moghedien/Moridin in the world of dreams.

It's also possible that the Shadow starts using TAR more vigorously as the actual battle builds up. Cyndane and Moghedien may start to pull Rand's allies into TAR while they sleep and murder them, or drive them insane.

During the Last Battle though, I don't think there will be much of a role for TAR, or the 'dream team'. The Forsaken can't affect the real world from TAR (unless they kill people in their sleep) and its much more likely that Moridin will need their abilities in the physical world as the actual showdown commences.

I can't help but feel that the last book was the 'peak' for TAR where we saw the Aiel/Egwene face the Forsaken/BA. Now its over.