User blog comment:Yatanogarasu/Favorite Couple for Luffy/@comment-2015213-20100726050722

@Yatanogarasu: Apparently arcording to some fans the Marineford arc is said by Oda to be the last arc where Luffy is 17. The problem with this rumor (just like the "Oda said the next member would be a former enemy" rumor) is that nobody has showed anykind of evidence for this. So it is just a rumor. The only way I can see this rumor being true right now is if Luffy suddenly turned 18 during the 2 weeks he was in a coma.