Just saw that the traditional saturday charters from Germany on behalf of TUI/Wolters for 2009 only include Hanover and Frankfurt, opb by Lufthansa. Apparently no charter flight from DUS, which will, however, have a scheduled Lufthansa service and the new airberlin service.
The TUI website says that it "probably" will be possible to just book GCI-JER, but my understanding is that this will have to go through the tour operator as it is a charter flight. Apparently this is still subject to government approval.