Here's the link to Amazon PS4 digital, no idea why it is not on the game site, do note that ordering the digital version does not contain any pre-order bonuses.

http://www.amazon.com/Tom-Clancys-The-Division-Digital/dp/B0117XO806/ref=pd_rhf_gw_p_img_5?ie=UTF8&refRID=0YKMC3XGDWVR95PCYSST