My dealer hinted to me the other day John Deere has updates and possibly new models coming this fall. He would know more after the june dealer show in cincinnati.
he hinted that JD is there with teir 4 now. Yanmar isn't. If there is to be a change from Yanmar to Powertech, 2012 is the year. Told me that JD has been working on small Powertech engines for ahwile now. Nothing is set in stone, just possiblities.