This misonception that some people have needs to be cleared up because the FAQ might be hard to understand or unclear.
People are still confused and spreading misinformation. I keep seeing so many confused posts. So for those people:
THERE IS NO EXCLUSIVE CONTENT FOR STEAM USERS
YOU WILL BE ABLE TO PLAY ON THE NEW SERVERS WITH OR WITHOUT USING STEAM
YOU WILL BE ABLE TO PLAY ON THE CURRENT SERVERS WITH OR WITHOUT STEAM
"STEAM WO" IS MERELY A SEPERATE
No way to transfer silver coins or items or premium time between those clusters.
As those aren't out of game assets, if you're inclined to do that, (according to the current rules) you can trade with other players by paying them with in-game items on another cluster, if that's what you're asking about.