According to the latest edition of the Wrestling Observer Newsletter, the current plan is for Lars Sullivan to face John Cena at this year's WrestleMania. However, those plans could now be in jeopardy because the NXT Superstar failed to appear on this week's episode of RAW as originally planned.
It's said that the reason for that was because he suffered an anxiety attack before the show and either didn't show up at the building or left after it happened. While WWE is understanding of mental health issues, you have to believe this will hurt his standing because officials will have their doubts about whether he can hack it on a big stage and won't want to put him out there if he's simply going to freeze.
The match could still happen, of course, but that all hinges on whether or not WWE is planning to give Sullivan a push. With any luck, he'll be able to get past his anxiety and we'll see him debut soon.