So, the big question is: Which two routes will be double daily? Given the size of the market, my money would be on ANR and CGN, with RNS, CFR, FMO and GRQ daily flights late morning/early afternoon.
I assume they have done some homework. CityJet fly the Antwerp route from LCY 4x daily I believe, and Germanwings fly 3x a day average £100 return CGN-STN. (Personally I prefer Dusseldorf as a city to visit, but maybe CGN is a better business route).
No, DUS is a better business route, but it has tons of LON flights (STN by AB, LCY by BA, LGW by U2, LHR by LH and BA). CGN has only LHR and STN by 4U and LGW by U2.
STN-CGN will be reduced from the end of November to twice daily, so I guess there is a market for the lost capacity. Also, CGN-STN is the route of choice for Ford officials since the end of Fordair.