This is a frequently rejected request.
I have for years said that there will never, ever, EVER be a newbie island. Over my dead body. I'd rather sell the game to Zynga. No amount of discussion will convince me otherwise. You can get a UN resolution passed on this and I won't implement it. I'm out of ideas on how I can make this even more clear so that people will finally stop proposing it.
Actually, I think you misunderstood this.
The way I understood it was not as specifically a newbie island, but as a sandbox for
everybody. A place you could opt into to have a temporary character, that doesn't count against your regular character limit, who has a chance to gain power very fast—and lose it again when his time is up in just a few short months.
It would be a different experience from the rest of BM, but it could be a lot of fun, and provide a way for newbies to experience things they might not otherwise be able to, while also giving older players a place to try stuff they might not be willing to risk with their regular characters.