Looks like the online embargo was just lifted. Bunch of new Crucible videos are out.
Rift on Memento:
https://www.youtube.com/watch?v=2SWf5JCq2zQ
Rift on Dungeon:
https://www.youtube.com/watch?v=gBB9_WCnf2E
Rift on Memento:
https://www.youtube.com/watch?v=2SWf5JCq2zQ
Rift on Dungeon:
https://www.youtube.com/watch?v=gBB9_WCnf2E