I remember -- it must have been 20 years ago -- coming across an idea someone floated to do a Blue-Eats-Transitway, where trains would go Goverment Center-State-Maverick-Logan Airport-Seaport-South Station. (It seemed crazy even then, but I digress.) One thing that I've remembered all these years later was the idea of renaming Airport Station to "Airport Junction," being the place where the new branch would diverge.
Blue-East-Transitway aside, there is some aesthetic appeal to such a name -- it does call to mind a particular station-naming trope wherein "XYZ Junction" was in fact not anywhere near XYZ itself, but was where the track diverged in order to reach XYZ.
It's pretty awful for wayfinding, of course.
Just watch -- they'd rename that area "Airport Square" so that they'd avoid having to change all the station sign names. "Oh yeah, Airport Square! Nah, if you wanna fly somewhere you got to go to Logan station. Different place altogether." "But why isn't it called 'Logan Airport station' or something?," the wayward tourist asks. "Well, everyone around here just calls the airport 'Logan'," the Bostonian says with a shrug.