Toei Animation has announced on their official Twitter page that Digimon Adventure Tri Chapter 5: Symbiosis will be streaming on Crunchyroll. The penultimate chapter will be simulcasted on the service on September 30 (JST) so expect it to arrive on the service in morning of September 29 (P.T.). No other details are confirmed at this time, however expect to see more information within the next couple of days.
— Toei Animation (@ToeiAnimation) September 26, 2017
Source: Toei Animation