I very much doubt it is anything to do with the earlier proposed Kiss incarnation...can you honestly see anyone starting a new full service carrier at LHR right now?!
Rumour has it that this is a two B737 charter operation (one LGW and one MAN) for start Summer 2009...bear in mind that for such ops within Europe, you could easily park such an operation on an existing AOC of any EU member state airline, so any plan could easily be well advanced without any of the 'traditional' signs of a new operator starting (filing of application with CAA etc)