Adding a new race for example is a huge undertaking. Tons of story/lore stuff to worry about, you have to go over ALL gear and make sure it fits and works. Same with adding jobs. It cannot happen in a flash. Remember that MMO's have a 10 years support cycle. They need to make sure to add the stuff in a timely fashion while making sure it all works alright. Cross over events are a legal mess that require sometimes upto a year or so of preparation.
Glamour log is something they are looking at, something to change the glamour system. It feels like that Jhett_Magnum has not been staying up to date with any of these things. Everything he has mentioned has been given a reason many times.

Before Stormblood, PS3 was holding the game back. Nobody admits this now, but by the time this all over, someone is going to openly say "yeah we couldn't do X because of PS4".

Take a break if you are sick of waiting.