If the newspaper report is accurate
- that would be a first! - the future for BA longhaul and for BA as a company is indeed bleak.
Assuming that, as they say, 'Turkeys do not vote for Christmas', the cuts will presumably leave the huge, non-revenue earning overheads of BA largely in place, while taking down the 'front-end' - nasty, noisy, expensive aeroplanes.
That leaves the surviving BA fleet to support the overheads. The route structure is already struggling to make a profit with a lot of long-haul aircraft flying fairly full - a situation to delight the normal airline. BA is unfortunately NOT a normal airline.
If you take high, fixed overheads supported by x aircraft; reduce x by y; the unit cost per aircraft in supporting the overheads will rise - yes? That makes the surviving fleets less profitable and more attractive to the surviving Turkeys (sorry, accountants and management consultants) for the chopping.
What will be left of BA? A glorious HQ running almost nothing. I can only see one way this once great company is going - the city will not take long to see through the demise of BA the airline and be looking for whatever BA is to be. If they do not see a potential for earning money - and for an airline it is aircraft mainly that earn the money - they will want out.
If the newspaper report is accurate................
Carnage - you beat me to the conclusion!