Nostalrius Begins - Quality wow vanilla realm (1.12)

This server;

Is it only going to be in Vanilla or are we going to get into more content later down the road? Like BC?

Theres already a thread about this with an answer which i believe its something like this:
It's gonna remain vanilla but later on (when developers make a working TBC server) you'll get a chance to transfer your character on a TBC server. But i do mean it as a transfer, not copy, meaning that your character will be removed from vanilla server.