"Destiny 2"? What if this is all the Destiny we'll get? (Destiny)

by ZackDark , Not behind you. NO! Don't look., Sunday, July 26, 2015, 23:55 (3645 days ago)

The wording for The Taken King (Year 2, v2.0) makes me think Destiny will progress much like most MMOs, i.e. major updates that significantly impact gameplay/content availability, but keeps the core game. However, I keep seeing people talking about their hopes with what will happen with "Destiny 2" over here.

To those people: what if there isn't a Destiny 2? What if this is all we get?
To everyone else: why would you like this? Why wouldn't you?