Australia- Prime Minister; While I think the Liberal Party will remain in power for the next four years I find it unlikely that Tony Abbott will be Prime Minister in four years. My guess is the next Prime Minister will be Foreign Affairs Minister Julie Bishop, New South Wales Liberal Party Leader Mike Baird Communications Minister Malcolm Turnbull, Education Minister Christopher Pyne or Health Minister Peter Dutton
Canada- Prime Minister; I'm probably not going out on much of a limb here... but I'm pretty certain Thomas Mulcair the next Prime Minister of Canada.
U.K Prime Minister- David Cameron loses his coalition partners but picks up enough seats on his own to hang on.
France- President; Nicolas Sarkozy
Germany- Chancellor Sigmar Gabriel
President of the United States; If Hillary Clinton is the Democrats nominee they win. Otherwise the Republicans could nominate Vidkun Quisling and win.
Wow.
UK : Ed Miliband
USA : Hilary Clinton
France: Jean-François Copé, probably
Germany: I wouldn't surprised if it was
still Merkel.
Australia: Bill Shorten
Bonus:
Japan: Shinzo Abe
New Zealand: John Key