Typical is irrelevant, its a political process and the Republican majority in the Senate will be under strong pressure from within their own party's base to block any Obama nomination, both on ideological grounds and for strategic reasons (to preserve the nomination for their Presidential candidate, should they win.)
I wouldn't be surprised if there is no action until after the election (if a Democrat is elected), or the inauguration (if a Republican is elected.)
There's some merit to the argument that the voters should decide, too. It's not like this is a year where the outcome of the election is predictable; in fact, if anything, the GOP is on balance disfavored: call it a 50/50 shot at the Presidency, and a less than 50/50 shot at keeping the Senate, due to the 2016 map.
I wouldn't be surprised if there is no action until after the election (if a Democrat is elected), or the inauguration (if a Republican is elected.)