It almost happened in Kentucky in 2004, too.
Of course that's no guarantee of another repeat. And it wouldn't have to be NC, either. (Fingers crossed for that ass Cornyn to screw up everything he can between now and election day)
Only problem is that North Carolina is not Kentucky. Doesn't mean that it can't happen, but Bunning has always been a weaker candidate in reality than he appears on paper (kind of the opposite of McConnell). Who knows about Dole?
And Texas certainly isn't Kentucky.
Besides, Noriega has to get money to be able to run a campaign first and foremost.