Possible New GOP Coalitions

[Mehmentum]

Its going to be a hard few decades for Republicans, who knows what things will be like in 20-40 years?

Most likely, the Republican party's resurgance will be fueled by capturing a new generation, similar to what the Democrats with FDR and Obama, and what Republicans did with Reagan. 

[Mehmentum]

Indeed, the racial categories that exist today won't necessarily exist in the same way decades from now:

http://prospect.org/article/democrats-demographic-dreams

I don't think we can assume that Latino's will integrate poltically, look at African Americans.