The Dyad is a conundrum.
The first Spyderco I ever bought was a Grey Dyad Sprint .
It was to big to heavy and its ergonomics were horrible , I soon sold it and Im just happy I persisted with he Spyderco brand because everything else I have purchased has been perfect .
Then a year or two ago I cam across an old Small FRN Dyad for a cheap price . I bought it for no real reason and it has vaguely changed my mind on the design .
I think the small size is where its best utilised, the ergonomics dont really lend themselves to any prolonged or intensive use , but if you use the smaller version like you would a small multi bladed Traditional knife ( opening a bag , cutting a thread etc ) then it works well for small quick jobs that take no longer than a second or two .
Its light and disappears into your pocket ( personally I would prefer to have a pocket clip but its not the end of the world )
So if there is to be a new version my opinion is that bigger is not better , keep it light and unobtrusive like a old fashioned Traditional knife . Traditionals dont tend to be big and over heavy for a reason .