I don't even want to try placing odds... but this list is my best attempt to name those who will be trading at above 0.5-1%
Democrats
Barack Obama
Andrew Cuomo
Hillary Clinton
Joe Biden
Martin O'Malley
Elizabeth Warren
Al Gore
John Kerry
Kirsten Gillibrand
Russ Feingold
Deval Patrick
Rahm Emmanuel
Kathleen Sebelius
Do Feingold, Warren assume they win an election before then? A former Senator seems unlikely, but a failed one-time Senate candidate seems very unlikely.
Powell will be nearly 80 by Inauguration Day. Kasich seems too unpopular at the moment.