Can we sequence DNA from them? Probably, but not certainly. Ancient DNA is a very tricky business. The preservation of DNA depends a lot on the conditions they've been in since death. Cold and dry is ideal. I know we've sequenced DNA over 30,000 years old, I'm not sure what the record is.
Ancient human DNA is even trickier. If you're dealing with ancient bison DNA, you can largely avoid contamination problems by keeping the remains away from any modern bison. Keeping your human remains (and DNA samples extracted from them) away from modern humans isn't so easy. In this case, the cat is already out of the bag - the samples have been exposed to modern human DNA for decades. All is not lost, but it makes the job harder, and the outcome more open to doubt.
Can we clone them? Absolutely not with current technology. We can't clone a cow from a fresh steak, yet alone 10,000 year old bones. It is conceivable that future technology would allow it. I don't think you'll ever get it past an ethics committee though.
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