I also thought it was more than likely to be CDG-SOU but didn't have any basis beyond my thoughts on which to suggest it. And yes this does seem to be picking a fight in almost every possible direction.
Apparently they've been rather crass in managing their slots by trying to disguise what they're up to but using the old Flybe flight numbers for each new route which then makes their plans pretty obvious. If they wanted secrecy then that's a schoolboy error.