As the game's balance currently stands, I find it hard to recommend Monk. Ninja does equal or greater damage when played by an equally skilled player, but has much more meaningful utility, and Samurai destroys it in damage output. If they bring up Monk to be capable of inflicting about 92.5-95% of the damage inflicted by an equally skilled Samurai, then I would say go for it.

(Separately, I would also say from my perspective having played it for years, the changes from SB in adding Riddle of Fire and RNG-based skills makes the job feel a lot less satisfying to play than it used to.)