"They have the summer 09 timetable out but what about the winter before that. the online timetable has nothing between 3rd Nov 2008 and 1st May 2009. Could Coventry become a summer only airport?"
This has happened every year so far of the TOM operation from Coventry (and Doncaster and Bournemouth). They do not put the Winter programme up (except some longer haul) until relatively late and someone predicts the end.....
Thomson Holidays meanwhile are offering the usual destinations from CVT through the winter.