Tencent has gathered several major IPs from Ubisoft into a joint venture, acquiring a 25% stake for just 1.1 billion euros.
I think the acquisition price for Nexon is a bit high, making the deal somewhat difficult. Tencent is already strong in Asia; DNF's domestic server is published and operated by Tencent itself, while MapleStory's domestic rights are authorized to Shengqu for publishing and operation, and Shengqu is a subsidiary of Tencent.
Ultimately, it's about the value of "Assassin's Creed" + "Far Cry" + "Rainbow Six," compared to the valuations of "MapleStory" and "DNF."