Depends on what you're asking here, Sam. Are you asking for someone to duplicate his image completely, even going so far as to be called "Sting"?
If you're asking for that, do either of these men ring any bells to you?
McMahon has tried imitating wrestlers before, all to absolutely little to no reaction whatsoever. Vince promoted for weeks that Diesel and Razor were back, and when Vince revealed that the "characters" had returned, people shat all over the damn thing, with rightful reason. Granted, you're on to the idea that Sting is shit right now, but if you're asking for a complete copy of his gimmick, I will cite Fake Razor and Fake Diesel as a reason as why this was a horrible idea.
Are you saying that you want someone to be billed as the wrestler they are, but with the same idea for a gimmick? For example, let's put the face paint on.... Well, Ted Dibiase. He's still billed as Ted Dibiase, but he has on the similar face paint, and walking through the rafters?
I suppose it could work, but I also would like to bring up this man:
Sure, Goldberg was over big in WCW. But people's big knock on Goldeberg, either than the fact that he wasn't much as a wrestler, was that his gimmick was a bit of a rip off of Stone Cold. Black trunks, bald head, yada, yada, yada. I never saw it myself, as I saw the gimmick's as completely different. But still, some people knocked Goldberg as a Stone Cold rip-off, and to this day, it's been on of his biggest knocks.
That gimmick wasn't as overt of plagiarism, but if you're proposing this, then you have to realize that this is pretty overt. The only person that does similar things as Sting currently in the WWE is.... Well, no one, really.
You know, actually, the more I think about it, some man does bare somewhat of a resemblance to Sting before his Crow gimmick:
But I'm not sure if I'd sacrifice my most markatable wrestler for what basically sums up to a rip-off. Cena doesn't need to be doing the Crow gimmick, though I suppose it could give Cena back his edge.
I'm not sure if that idea would work, though. In short, I think vince has tried already what you're proposing, and it simply didn't work. So why try this again?