Doubtful. Walker is the fall back position for the uniparty, given that their first and second choices of little jebbie and marco the squish don’t get traction. Hence all the attention his campaign received early on.
That said he is objectively better than most. I think that when push comes to shove when and if he is elected, all those fine words about protecting American jobs will be forgotten and the gates will be thrown open in some fashion or the other. In that all the candidates are of essentially one mind. And I include Cruz in that as well.
We'll see soon enough. If the big money donors start boycotting him, and the media manages to pin a toothbrush moustache on him, we'll know for sure he's the real thing. The problem is, he might live on only as an example of how political careers are destroyed by touching the legal immigration third rail.