http://www.npr.org/series/196613711/texas-2020I recommend that series of articles from NPR. It's called "Texas 2020," and my hope is that Texas will be somewhere along the lines of North Carolina (Republican-leaning but obtainable) by 2020, but imo that's probably a best-case scenario.
Democrats face a big challenge in a)getting more Hispanics to vote and b)cutting into Texas Republicans' traditional strength among Hispanics (relative to other state Republican parties). On the other hand, I could see a (potentially increasingly) conservative Texas state government helping to mobilize these minorities, and it does seem like Democrats (might) be looking into investing into the state in the long-term.
There's a bunch of interesting graphs here:
http://txredistricting.org/post/50273731090/texas-missing-18-24-year-old-voters