Returners don't get en suite's. There'll be like one returner in each en suite flat, same as all the other flats; the point of returners is to have someone there to help everyone else in the flat settle in, let them know about everything within the hall.
You really don't need an en suite in Goldney; in our flat of 8 there were two separate shower rooms with toilets, a separate toilet and a room with just a bath in it. The en suite blocks are also separated from the quad, which is where all the fun stuff happens; has a nice little community feel and people hang out outside and stuff.