Assuming you speak neither of those languages, the big update is the new class. Academics can damage dealers or healers, with a specialization coming at level 15; Alchemists focus on support while Engineers deal out exceptional amounts of damage. The class also features a choice between cannons and bubble guns for damage, with the former hitting hard but slowly while the latter is quick but weak. It should be an interesting addition for EU players, although it still raises the question of what's so academic about shooting people.
[Source: gamigo press release]