I think it's very unlikely that they'll remove DC travel at this point, whether it would be the best solution or not (we could probably argue hypotheticals for ages). It's not like the ilvl cheese, something which was never intended in the first place and SE just closed the loophole. It's a feature that was introduced and is widely used, and if SE backpedals on it now, it makes them look bad.

This is a crazy solution that no one will probably like, but if they swapped three servers from Aether with three servers from Dynamis, the two DCs might just balance each other out.