Does this mean they will offer cheaper deals and loco's will shift business to these airports
Probably - although Luton is hamstrung by a ridiculously uncompetitve concession agreement with the local council whereby it pays it for each airline passenger handled, with the result that TBI has difficulty matching deals elsewhere if it is to make a reasonable return from its Luton business.
However, if I was BAA and Stansted, I might now be just a little concerned...