Honestly if Honda did re-release the 700xx I think it would be exactly like the one we have now. The reason I say this is because there has been very little change in the 400EX and 450R over the past 5 years.
But I have heard some rumors that there would be a return of the 700xx once the economy gets better. I even heard rumors of a dealer in Canada that they showed the 2013 700xx in there new parts order forms. Could have just been a misprint though. Also since Honda has already officially announced its 2013 lineup I would highly doubt we will see a new 700xx any time soon. Who knows maybe for 2014.
2008 700XX - OMF Beadlocks w/Billet Centers & Reinforcement Rings, Kenda Kutters, CCP Steering Stabilizer, ASV F3 Levers, ODI Rouge lock-on grips, Houser Bounce Nerf Bars, Pro Armor skid pad, UNI Filter
2007 400EX - CCP Steering Stabilizer, GT Thunder 450R Shocks, 450R Rear Brake Conversion, YFZ450 Front Brake Conversion, ProTaper Bars, Rath Racing Nerf Bars, Alba Elite Bumper, ASV F3 Levers, ODI Rouge lock-on grips, UNI Filter, Kenda Kutters, Pro Armor skid pad, Armadillo Swing Arm skid pad