It could theoretically have the same thing happen to it as Colorado, and since it's a tiny state, a large amount of people coming into it and forming a metropolitan area would change it pretty dramatically. That would turn it into either a CO-lite or CO on steroids, making it a (non-atlas) blue state.
However, if Wyoming were to become blue, it would be in isolation of national swings. Perhaps the same thing would be happening in Montana or Idaho? And even then, it's unlikely as all hell
This is true. A large urban center like Denver, Portland, Seattle or Las Vegas could easily turn the state blue. But I don't see that happening any time soon. I think Democrats have a better chance of winning Utah by increasing their strength in Salt Lake City.