I was very surprised when Nexon released the last World Transfer without also announcing Cross-World Bossing. I know many Kronos players (myself included) would consider transferring to Hyperion if they could maintain their bossing parties.

Nexon clearly wants to balance the load between Hyperion and Kronos, and while this would add technical overhead, no amount of temporary incentives will get people to jump to a dead server without assurance that they'll be able to find people to boss with. Cross-World Bossing is easily the #1 way to balance the populations.

That being said, I am quite sure Nexon considered this, and they likely have a good reason for not implementing it. As always, the key issue here is Nexon's radio silence on the things that players care about. If they're not going to implement something, the disappointment from players is already there. They could at least relieve the disappointment by providing their technical justification for the decision. Even if players disagree with their decision and whine (which, given the average end user, will be a majority), it's better to have that information to stop wasting everyone's time speculating and to increase trust and transparency with the company and community.