Floyd should go about his life the way he wants, with the exception of making more of a scene than he has. His words have been heard by everyone who wants to listen and his testimony in the Armstrong case will also be heard (if he is called to testify).
He has done his part to bring awareness and clean his conscience, if those were his true goals.
He should continue to race endurance mountain bike races and whatever domestic races he wants. With the rest of his time, he should do what we all do. Get a job and have a good life.