TV PG is the more realistic option. I dunno why Disney XD or Nicktoons wouldn't be interested in a show with over 100 episodes in the can (sans some light edits), and I'm sure Funimation/Toei want to get this thing on TV in some capacity (nobody takes on dubbing a near 500 episode and running series and just shoots for meager DVD sales).
I'm willing to bet we'll see some solid news as to the broadcast future of One Piece by the end of the year, at this rate.