I say no, because I feel that them coming back now would simply be in vain. It would be one of those things where it would be sweet, but then it's also like a trilogy where the sequels are never as good as the first. There are exceptions, but I doubt this will be one. There are alot of bands where it would be cool if they could get back together and rock the world once more, but they aren't young anymore, things aren't as they used to be and it's likely that they would never do as great as they once did. However, I would love to see one come back, and rock like never before. But people and their attitudes/view points on the world change, just as the bands do. Often these bands have switched out, gained, and lost a number of members.
That's just my opinion. But hey, maybe I'm wrong, maybe they should get back together and maybe they'll rock the world with their music once more, it may not be the same, but it may still be great. Then it would be an honor to be wrong.