https://www.reddit.com/r/DestinyTheGame/comments/5syl0k/information_regarding_the_future_of_destiny/
Story
Future
Character transfer
The next installment in the DESTINY franchise will be revealed as " Destiny II: Forge of Hope".
Will be launching in Q4 2017 with an estimated window release of November 4th to November 18th.
The next installment will be launching on five platforms: PS4, PS4 Pro, Xbox One, Xbox Scorpio (TBA) and PC.
Console Exclusivity will remain with PlayStation but the exclusive period will be reduced to 3 Months.
The game has a whole new engine built from the ground up with the ability for Bungie to rapidly create and ad new content to the world of Destiny.
Bungie is scheduling for an event release every 1-2 months centering around a theme similar to Overwatch while also delivering new narrative paths and new game play mechanics.
Story
The sequel will heavily focus on chronological events set after the Fall 2015 Expansion The Taken King. The cabal forces attack the city leaving the civilians and mentors of the tower defenseless. It is the guardians job to fight back the cabal and reclaim the city. While doing so the guardian will discover the long lost stories of Queen Mara Sov and The Exo Strangers motives. The story will culminate with the tower and city fighting back the Cabal empire resulting the guardian defeating the leader of the Cabal in the new Raid.
Future
Bungie is planning to release a substantial content updates for each quarter (Similar to the April Update)
Bungie already have a small team working on the first major expansion to be released in Fall 2018. Details are limited but it is aimed to be centred around the Vex and the Origins of Kabr and Praydeth.
Character transfer
Due to the new engine Bungie had to make the hard decision of previous Characters being left behind. The upside to this is the new release will have a more customization character creation including facial hair and class themed face paint and tattoos.