I just spoke with Scott’s technical/warranty department about retrofitting a Di2 group to the current version of the Scott Plasma 3, the Plasma Premium with SRAM Red Mechanical- the bike shown in my review.
You can install Shimano Dura-ACe Di2 on the Plasma Premium frame using external cable routing for the Di2. The cables would not be integrated inside the frame in the same manner as the anticipated version of the Plasma 3 that is specifically configured for Di2.