What's required to get the cells off ice

Getting it off the ice is relatively easy - we vitrify/freeze gametes and embryos and they grow into healthy people. I think the restrictions center mostly around the current limitations of adult stem cells (in place of embryonic or umbilical). You can do quite a few useful things but, risks.

I'm not certain about relative risk/benefit of doing those things with a cryo-preserved younger version of your adult stem cells as opposed to harvesting them when needed from a clinical perspective...but from a basic science perspective people have found rejuvenating effects from giving old mice transfusions of young blood, neural progenater cells, etc so it's promising.

(Also, if anyone's going to do this, you might be able to collect free goodness points by going on the bone marrow registry at little additional inconvenience.)