Originally Posted by
Myskin
It depends on what you mean by "if he flops". I guess that you are referring to the regular title, which IMHO will have relatively good sales for at least one year (and no matter what it sells, I have a feeling that it always be higher than Action Comics).
Well... That's a huge issue. It's another problem with superheroes' children. In addition to all the other potential issues they create, it is INCREDIBLY difficult to get rid of them. Superman titles can stay for a very long time without ever mentioning Supergirl or Kon-El, but it is quite hard to stay without the son of the main character.
One thing's for sure: they are not going to kill Superman's son. That's basically impossible. Sometimes I wonder how the hell Grant Morrison could think that he could seriously kill Damian once and for all after several years of building him as a character. A dead son, for God's sake! It would have added some unnecessary angst for an already grim character for whom the only real, iconic death is his parents'.
Here's the deal though. If they really, really wanted to get rid of him, they could kill him AFTER retconning him as something different from Superman's son. For example, if they said that Jon is actually a fake son created by Brainiac together with fake memories or some **** like that they could have him die - maybe in some glorious act of self-sacrifice. There's an interesting detail - as far as I remember, we never saw any single moment of Jon growing up except for his birth. Which means that they could use some fake memories/timespace shenanigans to retcon him. So... If they wanted they could find a way to kill him, but only after making him something different from Superman's son. It's convoluted, but they could do it.
Of course, it's not impossible for them to de-age him, even if I have thoroughly explained why it is unlikely IMHO. By the way, I am not familiar with Franklin Richards' growth, but as far as I know his "iconic" version is the superpowered kid one. Also: I guess that Franklin Richards had been a kid way for several years before they planned to make him an adult. Which means that the kid version was the "regular" one. As I said earlier, that's not the same situation we have with Jon, who in some time will have been an adult longer than he has been a kid.
All in all, I think that all depends on what they are planning to do with Infinite Frontier. The impression I got is that they are going towards some kind of Anti-Crisis, with more rigidly divided parallel worlds. And I guess that they could use it to reduce the number of characters on the main earth, which is quite high at the moment. They could put Wallace Kent on Earth-2 and leave Wally on Earth-1. I find it interesting that we don't have any JSA title on sight, and I am beginning to wonder whether they are planning to restore the old Earth-1/Earth-2 division - I mean the pre-Crisis version. Should that be the case, I can easily see them placing Jon Kent on E-2 as a son to the original Kal-L (maybe even as the kid version) and a member of Infinity Inc. Or they could restore the classic Super-Sons earth.
P.S. About the "big deal"... I wouldn't overestimate this type of moves, quite frankly. If the New52 has proven anything, it is that they could easily discard entire fictional years of the characters in a heartbeat and replacing them with something different. And Kon-El's quite long career (way, way longer than Jon's, with better sales) and his current irrelevance shows that anything can happen even to apparently popular characters with no huge consequences.