Folks, you want to brush up on your fleet and customer service contracts. The new language allows a station to be expressed or MDA'd. That station can then operate two daily mainline flights, with the express agents working those flights, AND additional mainline flights 'seasonally'.
Those mainline flights, operating into former mainline stations, will be maintained by mainline mechs, flown by mainline crews, and ground handled by express agents.
The shape of things to come.