Looking for treasure trove of ancient microbes

Lake Vostok is a giant freshwater lake that is entombed beneath 2 miles of ice. It is estimated that this body of water has been sealed off for ~10 million years. Scientists have been drilling for a long time in hopes of reaching the water and to then be able to sample it.

What would they expect to find? Microbes would be the primary form. What would microbes that hadn't intermingled with other microbes in millions of years look like? That's the magic question. My guess is that there will be some really amazing things that come from this and that it will related to environmental metagenomic analysis

http://www.nytimes.com/2012/02/09/world/europe/russian-scientists-bore-into-ancient-antarctic-lake.html

http://www.huffingtonpost.com/2012/02/09/lake-vostok-microbes-unlikely-life_n_1264605.html (this article diverges quickly but for current students I like how it alludes to the extremophiles)

An interesting side note - the world's coldest recorded temperature was at Vostok - minus 128.6 degrees. They had to try to do most of this work in the "summer" when flight into the site was possible