Biased because I work there, but App Academy (coding bootcamp) has been running ISAs (Income Share Agreements) and deferred tuition models for the 6 years we've been around. I'd be shocked if this sort of model doesn't catch on soon and becomes a more de-facto way of monetizing. Pretty similar to trade schools in both form and timing.
Purdue started implementing ISAs[1] but they're crazy expensive. Hopefully the university system can get closer to the value of the education instead of a multiplier on the students' results. Minimum payback threshold is also only 20k[2] which is absurdly low. a/A has a higher minimum threshold that seems more humane to me (50k salary for in-person cohorts and 60k for online cohorts).
[1] https://www.purdue.edu/backaboiler/FAQ/index.html [2] https://www.purdue.edu/newsroom/releases/2018/Q4/purdue-rese...