Elysium or K2 for AQ launch event

The AQ launch event is something I have wanted to be a part of ever since retail, I got into WoW right after it happened and since then have always regretted not being a part of it. I was trying to be part of it when it happened on K1 but I started a character on there too late for it to happen and so missed out on it again :/ I'm back again, I figure since both servers are relatively new and war effort hasn't released yet with my limited time to play this game I should be able to get a character to 60 by the time it releases.

I have tried both K2 and Elysium, they are all right. I just don't know which one to throw myself into and make the judgement, will one still even be around long enough for the event? Should I wait for a better server to come around and invest in it instead cough cough CRESTFALL cough cough? (I'd rather just start now personally) So which should it be? Elysium or Kronos 2? Pros and Cons of both of them? I hear Elysium has a lower pop, but also less DC's...