Have you seen what they have prepared for the Dark Below? (Destiny)

by Monochron, Tuesday, November 04, 2014, 16:32 (3671 days ago) @ Korny

There is no way Bungie will only want to release bite sized exapansions to complete the story/gameplay arc for Destiny. Bungie understand that the presentation of Destiny was very lack luster in many regards and I'm pretty sure that they feel that the only way to remedy that is to create a full sequel.

Whether or not they will be splitting the playerbase remains to be seen, but I would put my money on them keeping it as cohesive as possible. Possibly heavily pushing digital release so that they have avoid a multiple disc situation where old planets/missions need to be played on the original disc. We'll see.