Perhaps the Walsh Admn could invoke a better selling strategy. Lobby the Church of Christ Scientist to embrace a non-affiliated international student village.... Outside of NYC, how many cities in the US do this forward thinking?
NYC;
http://www.nystudentcenter.org/
http://www.internationalstudentresidence.com/
Paris;
http://www.ciup.fr/en/
Do 2 stepped resident towers going 16~22 stories (like M Block, Seaport). 3rd tower: a huge youth hostel, 12~16 w/ cafes directly opposite the Church of Christ Scientist green, but also having it's own green space for some type of artist/live entertainment venue.
You could tax them at better rates for the City, while freeing up dorms from BU to DTX. Add no cars. And as the mega projects at 1, 40 Dalton, Parcel 15, the Huntington, etc, come home, the outdoor cafes (built too small of course), would reach full capacity, (spill over on the weekends), and serve a huge benefit to the area's new residents and greater neighborhood.