Should be possible...if they choose to port the PS3 version, it might be 30fps though..not a big deal imo...Madden 08 ran fine at 30fps on PS3.
Also little details on the field might get downgraded, but since its on a 5" screen it should not be noticable....also there is a chance it acually might look better in certain parts because its a legit OLED scren....I don't think a next gen Madden has been played on a OLED screen by any consumer.
If they keep the same art direction...similar lighting..it could look amazing on a 5" OLED screen.
Also it would have various control options for casuals and traditional Madden gamers..it should also be able to link wth the PS3 to continue franchise mode on the go. If u get both versions.
Only problem..it might be released a month after football season finishes.
They say ealy 2012 for the U.S.