Originally Posted by Pants
The thread is labeled as a spoiler, I don't think you need the tags.
Jon is likely dead. But, if he's going to be Azor Ahai reborn, he needs to be reborn.
Griff could be an imposter, but Varys believes him to be real. He told Kevan that he was real before killing him, no need to lie to someone you're about to kill. Either Varys (who was responsible for replacing him before Gregor got there) is being fooled, or he's really Aegon.