Suikoden Tierkreis has been confirmed for the Nintendo DS by Japanese gaming magazine Famitsu.
Here is the information supposedly contained therein.

- 50% complete
- Characters are 3d
- Backgrounds 2d
- Traditional rpg it looks like
- You tap the touch screen, making battles move at a fast pace
- The main headline of the article is "The Chosen 108 heroes have been destroyed?!" so maybe this game will be different from other Suikoden games in that regard?

Scans are available here.

Scan 1 | Scan 2