If the GOP keeps losing, when would a viable replacement party emerge?

[Slander and/or Libel]

The GOP would just become more conservative

Because insufficient conservatism is always the explanation for a loss.

[Slander and/or Libel]

2016, is gonna be a close; competetive campaign. The economy is growing at 0.2 percent.  I wouldnt be so confident if I were the Dems. They can risk playing it safe like the did in 2014; and Jeb Bush can sneak up, like they did before. In either case, whoever wins the prez, will still have a slow economy to deal with.

Jeb isnt going to be the nominee and he certainly wont be President

First assertion: untrue.
Second assertion: true.

[Slander and/or Libel]

2016, is gonna be a close; competetive campaign. The economy is growing at 0.2 percent.  I wouldnt be so confident if I were the Dems. They can risk playing it safe like the did in 2014; and Jeb Bush can sneak up, like they did before. In either case, whoever wins the prez, will still have a slow economy to deal with.

Jeb isnt going to be the nominee and he certainly wont be President

First assertion: untrue.
Second assertion: true.

History (liberals seem to love historical inevitability), says that 2016 will not only be close, but closer than 2012 (which was the 3rd closest re-election in US history). You have to go back t0 1904, to see where a party running for its third term won by a larger margin than in the previous election.

I believe you were responding to a different post than the one you quoted.