Over the years, Monk dev time had seemed to be, what can we do with Monk? I know, more GL upkeep abilities, they keep complaining about it dropping off, so they obviously need more.

It has been said countless times, but from HW onwards, Monk has just stagnated. It never really got anything new, it was more of the same, for 2 expansions. This is one of the reasons why the TK rotation was a thing. People worked out how to get a small amount fo extra damage, but it required alot of thinking and preparing, which is what poeple wanted. Once positionals are muscle memory, there really isn't anything else to worry about.

For the past 2 expansions, the job hasn't evolved, we are still HW Monk in ShB and that is the main issue here.