Wasn't Knife and Candle doing vaguely similar to this? Where you could unlock more moves as your Shadowy or Watchful increases?
The notion over in Knife and Candle was of "Strata" where if your 'shadowy', for example, would advance to +4, you instead get +1 in a new 'stratum'. The idea here being that if you go against lower strata, you just succeed, it's beneath your usual notice these days.
The other idea was that 'qualities' would add further options to the your moves, so if you had "Connected: Urchins" you might have some Urchin-related options on your shadowy roll in an appropriate circumstance.
I'm planning on using some of these concepts in my own hack is why I'm following them :)
But I like what you're talking about with 'advanced' moves, I think that's an interesting design space, certainly. I'll have to let Brian speak as to whether it's for his game or not, but I'm definitely going to be thinking about it.