i can spot one other difference compared to our HR16DE's in that picture also...if you look closely there is definitely a size difference in the throttle body compared to ours, looks like they went with a larger throttle body for the newer design if im not mistakenalmost everyone had the hr16de at 86kw for the past couple of years. The HR16DE in this years models and cars soon to be released are stating 93kw. I can only think that link from aichikikai is just old and outdated. I remember looking at that same page from them a year or two ago.
Here is a pic of an HR16de with 93kw. I see one big difference, there might be more. I know of a few tuning companies that get up to 125bhp/ 93kw with tuning alone on the older HR's so I agree that the CVTCS being tweaked for more power is doable. All the companies mention adjusting the CVTCS. The engines coming with the 93kw stock are all twin CVTCS with dual injectors just like our current Versa and Note.