Chances that Russia extradites the American whistle-blower Edward Snowden Pretty unlikely as long as Putin’s calling the shots. Putin has a very strong sense of justice, in his particular Godfather way.
Putin hates the US. Snowden did a great lot of damage to Americans. He didn’t harm Russia in any way. Why would Putin do any harm to him? And what kind of signal would it send to enemies of America and friends of Russia?
I can envision only one scenario where Putin makes a sacrifice of Snowden. Think some very high-level strategic transaction, something like Russia joining NATO, or a Russia-US Treaty of Friendship and Cooperation. Pure alternative history, so far.
Most likely, everyone right now are happy with Snowden stuck where he is until he decides he’s better off facing American justice than rotting in Moscow.