I have noticed that my Diplo seems to have a much longer pointed head profile than Micro's.
Nobody really knows the eventual size of these, I guess some of us will find out relively soon. Mine is now 9.5" and has started to pic up some speed in growth and will be going into an 8' very soon.
There is a pic of a decent sized 12" - 14" one on another site, WW, that give a good impresion of what they will look like.