Here's what I remember:
The glee kids are recruited by some TV producers in order to ''star'' in a televised projection of their futures - aka Glee episodes. Thus, we get to see the characters' reactions to events before they even take place. (i.e. Quinn's pregnancy, as she struggles to decide whether or not she wants to - knowingly this time - get pregnant or not.) I believe she decides to have Beth anyway. Blaine's basically a Kurt fanboy, and he emails him, cue Klaine flirting.
From what I remember, it was pretty Kurt-centric.