I've raised this on the BHX thread as I'm confused....the timings indicate a BHX based aircraft. It can't be a W pattern as the inbound from.TIA doesn't land into BHX until 22.50 (on both days of operation), unless they are going into the night flight market.....
So as you correctly point out, this will (as the timings stand and assuming TIA-BHX is it's last flight of the day) have to be a RUK aircraft. Which means they must be basing a RUK aircraft at BHX next summer and we will see FR relaunch AGA and RAK (both of which had very high load factors of course yield I have no idea about)
An Albanian subsidiary might also be a solution but what would that aircraft and crew do after landing into BHX at 22.50?
Personally I think we will see re timings on this route and it become a W (eg MAN-TIA-BHX-TIA-MAN) or the timings stay the same and we see RUK arriving at BHX 👍