I don't think that this is a dream match by any stretch of the imagination, however, I do think that if this happened on SD, it would be a fairly good program.
I could actually see this happening. Let's say Cena beats Orton, after he is finished with Orton, what other heels does he have to face on Raw. Actually, what other main eventors does he have to face on Raw? The only other main eventors left on the show are DX and they are busy at the moment. I would love to see Cena back on SD. SD has been the better show since the summer and new feuds with Cena on the show would really take it over the top. A Punk promo against Cena would be amazing because Cena would be able to talk back. As opposed to Hardy basically saying, "In your face Punk," or 'Taker saying, "I'm going to take your soul." (Last one was amazing) Cena vs Punk would be very good, IMO.
I would also love to see Cena vs 'Taker. Of course I would want to see this and what wrestling fan wouldn't? The last time the two of them locked it up one on one was when Cena was a heel on SD shitting on all the older guys and 'Taker kicked his young ass. We haven't seen the two of them in a feud while Cena has been on top. So this would be something else that would be outstanding to watch.
If Cena goes to SD with a returning Edge, 'Taker, Punk, Batista, Mysterio, and Jericho, SD would be the best wrestling show in the world.
That is all!