I definitely agree we need a weapon monk, I believe strongly that it would be an incredible kensai given the chance. The others are a little more complicated because I think that once we have the weapon monk, we're already in pretty good shape for the most basic monk archetypes. I suppose a drunken boxer is another tier 1 monk archetype, and while there's a lot of homebrew versions, the WOTC designers haven't tackled it yet, so that would be cool.
Which means it's definitely ok to move into tier 2 monk archetypes, zen archers are a nice idea, savage animal monks too, and so is a more support oriented monk who can heal (admittedly i hadn't thought about it, but someone mentioned including it as a part of drunken boxing- drunken boxer who prepares their own alcohol and knows the secrets of creating spirits with rejuvenating effects? damn, you're just going to make me disappointment when it doesn't happen.)