3) Convert Skies of Arcadia into an SRPG clone of Fire Emblem... or just use Sakura Wars or Valkyria Chronicles.
Console to Handheld to Freemium App...
Seems like the next natural step for Valkyria Chronicles to be quite honest.
I do think that VC would be the most likely to get some kind of Mobile gameout of those, and the one that would work best on phone. Change it to a top down view and have touch screen to move units, remove manual aim.
It would then be more reliant on stats and things like positioning which would be interesting. I'm thinking something like the excellent X-Com games or Silent Storm (with less real time aspects than Silent Storm because touch controls would make that a nightmare).
It could work quite well supposing Sega don't go nuts with making it a skinner box or something. Just give me that DLC, we have Vice, Fina and Aika in the game, now we need another Cameo. I'm thinking a certain Space gal named Ulala would work as a scout, personally.