Basically, I was just wondering what kinds of Add-Ons were in store for us in the later versions. Will it be possible for users to make their own custom add-ons easily? I know this might be a fair way off still, but if the game is going to be as customisable as I pray, then by all heck, it will last forever and ever...

There wouldn't happen to be any add-ons floating around already, would there? I doubt it, but ah well, worth a shot...