I'm not asking about server transfer, but trade through the character trade auction.
The manual of characters auction states that it's currently not possible. My question is about whether they are going to allow character trade between the two realms.
"18. I have a character on one realm but I want to trade it for a character on the other realm, what should I do?
It is not possible to trade characters between the realms directly. The only possibility is to get to the other realm, buy a character there and leave your previous character on the realm you played before or sell it. That's the only possibility right now."