Then it is still highly speculative. However, I am willing to accept if they have also make a determination about the DNA of extinct beasts like the Sabertooth tiger.
I am not sure about sabertooth, but I know they have been sequencing mammoths from all over. I suspect that they are working on most of the extinct megafauna. There are a lot of them frozen, so they're pretty easy to work with.
But teeth protect DNA pretty well, so there is a lot of material out there. Try a google.