I backed out these numbers from the ICANN draft 2012 budget. ICANN anticipates 500 applications at $185k per. ICANN is supposed to handle them on a ‘cost neutral’ basis. The $185k will allocated as follows:
50% ($93k) on processing the applications over two years
15% ($28k) on recapturing historical expenses in developing the new TLD program (which program has been kicking around since 2005)
35% ($65k) set aside for ‘new gTLD risk.’ I assume this means litigation and costs associated with protests (recall the lawsuits and uproar associated with ICANN’s eventual approval of .xxx).