Virgin Atlantic are starting services to Sydney, New York and Chicago in July next year using A340-600s. see link,
www.imboredandneedsomefunavaition.com
Seriously though, wouldn't of thought much would be happening at Blackpool. Your best bet is Ryanair announcing more flights there in the future as they need to put those shiny new aircraft somewhere. Maybe Frankfurth Hahn and possibly more flights to Spain if your really lucky?