The last operations were released on October 1, 2013, the next one will be October 21, 2014 at the earliest, since there's no indication of a new operation in 2.9 on August 19; that's at least a year between new operations Nightmare Modes of existing operations do not constitute new operations, despite how much you may want us to believe that.
Additionally, it will be at least 18 months between the raises of the level cap. We had 16 months for 1-50 content with 8 class stories and 4 operations. It will be at least 18 months, and possibly more for 51-55 with no class stories and only 3 operations.
If your goal is get players who love operations to leave and try out other games then you're succeeding. Please throw us a bone and tell us when anything of substance will be added to the game beyond gambling and housing mini-games.
There's one thing I can tell you that will keep coming...