1) The streak will never end, that chat needs to stop. Vince would have ended it long ago, now Vince knows it is a draw in factor for fans to watch Taker continue the streak. The streak is good for business, the streak is the only thing in WWE that has not changed.
2) I doubt it, although these up coming years of Wrestlemaina will be interesting to see how they handle his matches. I can see matches going shorter times with a little less beat down on Taker.
3) For some reason I don't see Cena vs Taker as a good main event. I mean I'm sure it will be a nice one to watch, but I just don't see it being a blow out.