So what do you guys think all of this is interpreting?

Memory of Xehonart
The Lost Two
Keyblade Master
Chasers
The Keyblade War

All this began with....birth by sleep?

Here is what I think:

Memory of Xehonart - Ansem
The Lost Two - Kairi and Riku
Keyblade Master - Sora (of course) with Mickey and Riku
Chasers - Donald and Goofy ( Sent by Mickey to the "Key")
The Keyblade War - Sora vs. someone

All this began with...... birth by sleep - this I am not so sure of.