Yea the Huff Post has an article similar to this. Here it is if anyone wants to check I think out.
It basically talks about Chandler being accepted into Auburn University and his Dad talking about how proud he is of Chandler & that the season 7 contract is completed.
(I'm sorry if I'm just repeating what the OP's article said, I didn't read it all.)
It also said that Andrew Lincoln and Norman Reedus renegotiated their season 8 contracts.
It also says that in a Reddit AMA, Kirkman said that Carl was his favorite character. In response to a fan asking about a spoiler, Kirkman said this:
What spoiler are you talking about? I don’t know what spoiler you’re mentioning here. I really don’t like to spoil things at random on things like that. Negan killed Carl?
They end by talking about how Kirkman joked about Glenn getting killed by Negan's baseball bat.
Auburn is driving distance from where the show is filmed so he can stay on the show- if he wants to.
But then again, I've heard different things. For instance, Kirkman was on Talking Dead very early on in the show. He said that TWD story is about Rick. So when he dies, they story is over. I mentioned this on here before and someone said that they read or heard Kirkman say the same thing- only about Carl.
If it is about Rick, then that means that Carl isn't safe. If they do kill him off, I don't think it will be anytime soon & I don't think that Negan will kill him.