I believe that the servey can still be filled out. Current results can be found on the following link.
You Would If You Could - Latest Survey Results
If i was a betting man i would say that Flybe are the most likely takers for Dusseldorf, Frankfurt and Aberdeen.
Dusseldorf and Frankfurt would either be operated if Flybe opened up a base from Cardiff or as a transit flight originating from Exeter as they don't currently get served from there.
Does anybody know when the summer 09 flights for Cardiff are going on sale?
Are flybe doing any Six Nations flights this year? They did a lot of them last year with a mixture of 146/EM4 and D8D.