I hope that the rogue can at least dual wield two swords if the warrior can't. I found it ridiculous that they excluded this option from Dragon Age 2 when it worked very well in Origins. If it's about making classes diverse then they need to decide which class can have exclusivity to the skill (because as a recap to those who have forgotten, both the rogue and warrior could dual wield in the first game). There was never a need to erase it altogether as an option and kick us in the balls by making the Arishocker a dual wielding warrior.
However it seems we've got the Arcane Warrior back (as Knight Enchanters) so hopefully we get the dual wielding tree back. There's a difference between dual wielding daggers like a ninja and dual wielding swords for the perfect balance between speed and strength. I don't want a rogue who is some douche-bag ninja with two small daggers, I want a rogue to be able to resemble a swordsmen with two swords. How else will he be able to emphasize the size of his willy without showing it? It won't work with daggers unless he wants to ladies to think he has a small one...