The Economist has an article on science in the incoming Obama administration. It includes this hint of possible changes to come:
"They [the transition team] have also asked for an estimate of the cost of carrying out all 15 missions that were recommended in a recent review of the agency’s Earth-science programme, which looks at things like the planet’s climate. At the moment, there is no money in the kitty for these missions, nor is much progress expected before 2020. The unstated implication of these questions is that someone is considering moving these missions up NASA’s priority list."