just seen on fmhos.de - and not read about here already:
- New Holiday Inn Express Cologne City Messe (Deutz-Mülheimer-Straße) (End 2011)
- New Holiday Inn Express Frankfurt City Bahnhof (Main Railroad Station) (Spring 2011)

and only mentioned as "future projects" (no date given):
- Holiday Inn Express Stuttgart (obviously City Center Neckarpark)
- Holiday Inn Stuttgart (obviously City Center Neckarpark as well)
- Holiday Inn Express Duesseldorf