According to:
http://www.lots.org.uk/
http://www.lots.org.uk/
1) After 32.5 years Green Line 757, operated from London Victoria to Luton Airport by Arriva the Shires with sixteen Van Hool Acron triaxle coaches, will cease serving Luton Airport from 1st May as the Airport Authority has awarded a new concession to operate into the airport to National Express. It is likely that Arriva will continue to operate between London and Luton Town but inevitably would be at a much reduced frequency. It remains to be seen how NatEx will manage this change.