If they're not continuing that, it disserves neighbors who should know what's coming.
I went back into the Barclays Center web site to take screenshots of the monthly ticketed events, and it's clear that the schedule picks up in the fall. The November and October calendars look quite full, with two professional sports teams, some basketball tournaments, Disney on Ice, and a few concerts.
The few months before then, however, were pretty slow, at least for publicly ticketed events. These schedules do not count graduations and other private events. Then again, September 2015 was slow, as well.
|25 events, minutes three canceled/postponed|
|12 events, minus one postponed|
The May ticketed calendar vs. the full calendar
Note that the map directly below mentions four graduations and a private event, though it doesn't have the three Islanders playoff games (two of which were played). So there were nine ticketed events, plus those four graduations and a private event.