Didn't they mention on a live letter once before that they're planning on doing bigger changes but have to wait until 6.0? Regardless, I don't really care at this point about losing greased lightning. It feels like it plays almost identical anyway, minus building stacks in your opener and spamming formshift. Monk had way too many "save Greased Lightning" moves, now that it's gone we might get abilities that actually change how monk feels. I really hope it does because monk in 2.x didn't feel all that different from 3/4/5 aside from the later half of 4.x.