I do not see what the problem with an A380 is.
The only problem I personally see is, simply, the runway length. Do you think with a near full load, or even full load, it could manage to take off? Don't see the harm with having to use almost the entire runway.
Where did you read this?
AFAIK the 764 only subbed for a tech 757.
That's what I meant. But still, could you see them operating with a 767 in the future, or at least a larger aircraft if the demand supports it?
No othether A380 operator is approved for diversions to Brumm
No other A380 operator is likely to divert to BHX anyway, if we're talking about the likes of Singapore which operate to LHR. They are likely to divert to LGW or MAN.