If they choose to do this, then they've really outdone themselves on "reaching out". This does not look attractive to young suburban/urban republicans, who in 20 years will (or would be) be a significant amount of the base.
When suburban Dallas, Fort Worth, Houston, and San Antonio start voting like suburban Baltimore, Washington, Philadelphia, New York, Boston, Cleveland, Detroit, Chicago, Seattle, and San Francisco, then the game is up for the GOP in Texas at the statewide level and in Presidential politics. Such is the difference between Texas and most northeastern and Far Western states.
Barack Obama won much of the suburban vote in the northeastern quadrant of the US , probably because the aging suburbs now have genuinely urban problems and require Big Government to solve them. The suburban areas around Atlanta, Phoenix, Dallas, Fort Worth, Houston, and San Antonio are newer than the corresponding suburbs of Northern cities and have yet to show the ravages of age.
Add to that -- the GOP has bet everything upon winning the white Protestant fundamentalists who would rather impose substandard education upon their kids than prepare them for a modern world because those fundamentalists believe that saving a soul is more important than effective education and economic equity. End Times tribulations? Hallelujah! Those who truly believe will be raptured away from the nastiness, and the secularists will endure Hell on Earth and almost certainly eternal damnation as they die. Global Warming sounds much like End Times anyway.