After thinking about it this is the only logicial match up. I think Cena/Taker should be at Wrestlemania 30 and if Taker decides to retire then he should do the job. Cena has said several times he's in this for the long haul, especially after his divorce. I have no problem seeing that.
However, for THIS YEAR....I don't care what the dirt sheets say about Lesnar's style being too physical for Taker, I think it's gotta happen. HHH needs to sit this one out in my opinion. Put his ego to the side...let the rematch happen at SummerSlam.
This, along with the Rock/Cena II of course, would sell Wrestlemania.
And the WWE production MUST use this to hype up the Mania showdown.