There has been some talk about Palace of Cetriss on forums as of late and it seems like people are under impression that Palace of Cetriss will be new T5 raid (makes more sense than another T3.5).
And what better way to spend your time than arguing with strangers on the forums while drooling over youtube videos featuring unfinished, half baked content? I am here to provide!
While people got to the Palace before me I couldn't find any youtube videos documenting it so I am posting my own.
Getting into the zone requires very little effort and it boils down to finding the right place to jump.
Tip? You know the entrance to the Palace that is blocked with rocks? Turn around and find a way on top of the mountain behind you ... and jump over the gap from there.
As a bonus check out http://joannatsui.com/ for some Dragon's Spine concept art, including Palace of Cetriss. Somewhat exciting (yes, it's a slow news month).