Unfortunately (and unsurprisingly), the Burning Crusade legacy server Felmyst has since been shut down thanks to a cease and desist letter being sent to them from Mitchell Silberberg and Knupp LLP, a lawfirm representing Blizzard. This happened only hours after the server had gone live (around five hours, according to reports).
According to Gummy52, Felmyst’s creator, he wrote in a post on Reddit, “I was in the process of upgrading the server’s upload speed when I answered the door and then basically sat around in disbelief for a few hours. During those hours I of course checked if the law firm was a real place, then checked if the number on the paper matched the number on their website, then called them to verify its authenticity.”
As to what the future of the server is, it seems that Gummy52 is pretty much done with it as he says, “The only thing stopping Blizzard from harassing me with court dates and whatever else is their decision to not to. It’s no skin off their nose if they decide to play games with me and I don’t think anyone is going to crucify them for it if they did. […] Here we are and there’s nothing I can do.”