My comments to FlyGatwick.
1. LH - How many slots do you think are now available at LGW? None for a full day in Germany. Easyjet have tried all sorts of German cities, they do not make good money.
2. AI - How you been to Airports in India? They are nothing in comparison to ME3 carriers. Once India builds some new Airports, which they will do then they can look to some of those transit markets. I suspect if they get more slots at LHR, then they will transfer. The AI operation at LHR is well established and will always be the primary end game if slots become available. They are part of the Star Alliance so will want to be closer to UA, LH & TK at LHR.