How fast will 2.1's content be completed?

[Starlord]

By the casuals? They will have more than enough to last them to even 2.3 ( Depending on skill)
By the Hardcores? It all depends if they deem it worthy of even touching. They have the best gear in the game why bother? ( To have fun or get gear for 2.2 Vanity maybe?) If they were to touch all of it though, probably in 2-4 weeks.