The TP will not go away because the TP is all about the federal governments constitutionally limited powers which the GOP wrongly ignores just like Democrats do.
Regarding the GOPs misguided war on the TP and the Constitution, the Constitution needs to be amended to prohibit political party support for the federal government. After all, given that one of the very few powers that the states have actually delegated to the feds, expressly via the Constitution, to regulate an aspect of intrastate commerce is the power to regulate the US Mail Service, why do we need political parties to decide policy for the US Mail Service?
And that is what everybody is missing. The TP has really focused at state and local level and probably will contorl 35 states legilatures (both houses)after tomorrow.. Convention of States will be their trump card against the Elite.