You're quite welcome. Happy I could clear things up for you.

I've given a good deal of thought to story progression, yes; and without going into too much detail there are three major factors for keeping things moving.

The first is that the game isn't infinite; while there's no definitive end it will be announced that there is a very definite way to beat the game. This is usually a good way to keep a group focused, yes?

The second is that I've got several NPC rivals waiting in the wings to cause frustration, and competitiveness, which generally brings about forwards momentum. The old "I refuse to lose to THAT guy." issue.

And lastly; there's the Evo system, which will be gone into detail IC, but I won't explain just yet.