During the course of New Nightmare, when Heather starts to get plagued more and more by dreams of Freddy, she calls her friend and former Freddy Krueger actor Robert Englund and tells him about it. He seems suspiciously knowledgable about the situation:
Robert: Wait a second, Now let me get this straight. You're having nightmares about Freddy, as in me?
Heather: No, it isn't you. He's scarier, he's...
Robert: Darker, more evil?
Heather: Yeah, how did you know?
Robert: Call that a guess.
And even more than that, he's actually right over painting a rather disturbing picture of Freddy. Yet, he doesn't tell Heather more and tries to put her off till tomorrow when she asks if she can visit him. And this is the last time we see Robert, for when Heather tries to call him the next day, his voice mail says he's left for multiple days and his character's arc is never picked up again for the rest of the movie.
But there was clearly something wrong with him and it isn't clear to me what, neither why he was never again mentioned after that incident. He seems to either have dreamed about Freddy, too. But he also didn't seem much aware of the situation himself and a little distracted. Yet, apart from Freddy's creator Wes and his selected opponent Heather, noone else from the film crew seemed to have dreams about him. Given his strange behaviour I found his sudden disappearance quite surprising.
So what actually happened to Robert Englund? An interesting aspect is, though, that Freddy Krueger was actually played by Robert Englund in this movie, too, as was the original Freddy who the actual evil entity was bound in. So does Robert have some kind of special connection to that Freddy because of this relation? Or was he even himself transforming into Freddy or was Robert's dissolution somehow necessary for Freddy's full emergence into the real world? Are there any other scenes or allusions, or maybe even deleted scenes, that clarify this aspect a bit and give a clearer conclusion to Robert Englund's character arc?