It's possible LA's knowledge could be a bonanza for USADA/WADA. Presumably he could identify enablers, suppliers, doped riders, tainted doctors/trainers, smugglers, origin sites for the peds, corrupt officials at USAC/UCI/IOC, traffickers, methods for using and defeating testing protocols, etc.
I would imagine this information would be invaluable if he not only confessed but actually agreed to cooperate 100% in exposing everything and everyone he knows about. I think USADA would make some sort of limited concession in order to pick his brain. Full restoration unlikely but a return to competition is conceivable. Probably would be far more valuable than the limited and contrived confessions they have received thus far. Even the most fervent of LA's detractors don't believe the confessions thus far are complete.
A safe bet that his legal team is in part responsible for his defiance thus far. I'll bet the legal team is squeezing him for what he's worth and will continue to do so through any possible negotiations with USADA. Whenever lawyers become involved they are the only true winners.
Of course the possible legal and financial ramifications could be and probably are holding LA back. Why shouldn't LA toss people and institutions under the bus, they've been doing it to him for some time now. Give USADA what they've been presumably looking for.
Take back the life-time ban for full access into the world of peds, why not, as long as it's 100% and not half-pedaling by LA.
Personally I'd like to see the house of USAC looked into. Since the early 80's we've been hearing about virtually every elite athlete passing through being coerced to take peds. High time to expose that good old boys club of corrupt officials and industry insiders. Somebody introduced (or at least facilitated) LA et al into the ped culture as juniors and espoirs.
Hopefully this chapter can be brought to an end.