Myself and others don’t want to do fresh because we have characters on Era still in the process of being leveled and we don’t want to abandon that progress. Blizzard has not answered us on if we will be able to transfer Era characters to TBC servers. (with certain restrictions)
Secondly, I also want to feel that if we’re forced to make a character on fresh for TBC that we will have a permanent TBC home. Blizzard won’t even come out and tell us that.
So fresh is going to wait for a good portion of us until the last patch when it’s not fresh anymore because Blizzard won’t communicate some things with us.