the only change to calendar since last update (actually it's not updated at ATP PDF calendar, but you can see it at "see upcoming tournaments" and in the "Tretorn Series" at Challenger and Futures ATP page). Some other Challengers of Sep, Oct, Nov and Dec can be confirmed by the national associations (a list of them can be found at: http://stevegtennis.com/toursite.htm#Federations
looking at the challenger calendar there are no indoor events currently scheduled after the USO, up to 28th Sep, so that means we wont be having any indoor events till at least Oct! any reason for this? orleans, grenoble & mons all gone/moved.
...and at Tretorn Series page at ATP, we will have still this year:
I hope ATP will update their calendar soon