I may be an unusual visitor to MAN - approaching 1st anniversary of last visit!
Number of athletes has reportedly gone up to 7000 from around 70 countries (though a large proportion wil come from the UK which will split into 7 nations)!
In term of athletes:
I would expect Qantas (747-400), South African (747-400), Air Canada (hopefully A340 or 747-400) and BWIA (?) to come here.
Perhaps Air India A310, PIA A310; very doubtful for African visitors.
We can expect a fair number of Heads of States to arrive!
But the greatest fear I have is seeing BA 777s and 747-400s appearing on the shuttle routes