Yesterday, Chaos Rings II got its own teaser trailer:
Square Enix also plans to update the two existing games, Chaos Rings and Chaos Rings Omega. Sometime this summer, Chaos Rings will get a free Japanese language voice pack. This will also be available to English customers, who will simply get the same voice pack (in Japanese) with English subtitles.
The voice pack gets its own trailer, too:
Lastly, Chaos Rings Omega will also get a free update this summer: a downloadable quest every 1-1.5 months.