According to ICANN they are not making money off of it. The money is spent on the reviewal process. They emphasized multiple times during yesterday's announcement they were pricing it at break even, and if a profit were to be made, it would be given to the community for them to choose how to spend it.

Their financials are available here as well, if you wanted to follow up in a year or so http://archive.icann.org/en/financials/