The consensus on message boards where I asked about the people on Cocoon is that they survived. Probably bumped around *a lot*, but still alive.
Sorry to say it looks like Fang and Vanille are still in the crystal, but I get the vibe that they are almost like the Fayth from X--able to communicate outside of their frozen bodies. At the very least it is implied they will revive one day, to "greet a new dawn".