How many people will soon lose interest and leave?
Considering that the hardcore players still have HM Denova to provide their weekly requirement for challenge, and now non raiders and the "average casual" has gear progression beyond Columi..........I would say no one.
Most players dont care less about difficulty especially in flashpoints as long as they can see a clear path towards gear progression. For those that do care, as I said theres HM Denova
Keep up the good work BW