Excellent news that RE are starting Newquay-Luton. I've been waiting for this route for a long time and intend to use it several times a year at least.
Luton is far better situated then Stansted for anyone travelling to north London or the Herts/Bucks/Beds area, and has a a far better train service to London, despite the short bus ride from terminal to train station.
Good to see that Newquay is still adding new routes despite FR having tantrums over the new airport tax and reducing flights. I'm surprised a loco operator hasn't introduced flights from Newquay to airports in Germany and the Netherlands given the large number of inbound tourists we get each year in Cornwall from these countries.