Dr Faustman's idea is in phase I clinical trials. Since she is using a drug that is already on the market, phase I should (and did) move quite rapidly. Phase II and III trials to begin, pending approval... oh, and if it works for the new intended purpose..... my best guess is 3 years to availablility for this use... because it's already available.
the happily surprising thing (to me) - once you turn off the autoimmune error that kills beta cells, they apparently grow back, even for us geezers. if they didn't - tell you what - I would not begrudge a vaccine that doesn't help me anyway... i'd be out there campaigining for it.
I don't see any other T1D cures in clinicals, however, I don't know everything =) Pre Phase I to product availibility averages 7 years unless you have a team like mine working on it... then it's 3.
otherwise, and only if it's a failure, I suppose we can look forward to better insulin and better meters, new colors for our pumps, etc.