The lights are on
trailer for it was pretty epic...i believe it's a fantasy rpg game, starts out with a party in a dungeon attacked by some dogs (?), cut to people scaling a wall while being attacked from above, cut to people assulting the same castle/tower from a ledge with archer ladders, ends with a stand off on top of the tower between the 3 different parties. Trailer came out a while ago (4-8 months?) and can't find it anywhere.
I believe your thinking about the cgi trailer of elder scrolls online.
I didn't catch the trailer so, haven't seen it but only tried to research it. Here's hoping that it's the right one!
Errrrhm... is it called Palladium?