They donít typically test prototypes like this for minor revisions. Iím not sure what changes they could be doing to the Street Triple that would require a prototype. My guess is that itís not a Street Triple at all. Itís either a very well disguised Speed Triple, which I highly doubt, or theyíre testing the Daytona 765 motor in a Street Triple chassis so no one knows what it is.
It's the Euro V bike; it is a Street Triple in base trim, it will look like a facelift of the current model but extensive revisions to the electronics to homologate it, thus the prototypes are required.