How about Garry Kasparov as Russian President? He quit professional chess to challenge Putin. Is Lech Walesa term limited in Poland?
Give it another yeear or two at most, Merkel will probably be die Chancellorin. BTW, is she Christian Democratic Union or Christian Social Union (they're technically two different parties that caucus together), CDU is the Protestant wing for the northern and southwestern part of the country, CSU is the Catholic wing that operates primarily out of Bavaria, an offshoot of the Catholic Center Party in the Weimar period.
i meant to also add, it's a little early, since he just got elected, but once Yuschenko leaves office how about Yulia Tymoshenko as President of Ukraine?
Merkel is CDU. Stoiber is still leader of the CSU I believe.