Well covered in fact. They’ve spilled their studio guts to make sure you’re prepared for the changes, like the new skirmish system and such.
Then there are those revamped mounts for your virtual selves to scamper about on, an improved combat system and tweaked menu/UI goodness. Frankly there’s almost too much to just sum up, so visit the official patch notes for the down and dirty.
Fair warning to you videogamer, there’s about 12,000 words of notes awaiting you.
