On a related note, we see that the DO is also starting to get more influence on TAR itself in TGS. Perrin mentions that in TAR now "the sky was stormy. Normally, clouds in this place were as transitory as other things. It could be completely overcast; then, in a blink, it would suddenly be clear. This time, those dark storm clouds remained. They boiled, spun, and shot lines of lightning between different thunderheads. Yet the lightning never struck the ground, and it made no noise."

Egwene notes similar differences in TAR namely that "she stood in the middle of a small camp, fire smoldering in a firepit before her, a tiny tongue of smoke curling toward the sky. That was odd. Fire was usually too fleeting to reflect in Tel'aran'rhiod. There were no actual flames, despite the smoke and the orange glow warming the smooth riverstones that ringed the pit. She glanced upward, toward the too-dark, stormy sky. That silent storm was another irregularity for the World of Dreams, though it had become so common lately that she hardly noticed it anymore."

It seems TAR in general seems to become like the corrupted part of TAR near SG: in a way more real, but nightmarish. If the DO starts to corrupt more of TAR now, this might in turn lead to more bubbles of evil.