I'm not familiar with Eryk so I looked him up. Dude is 10-0 with 6 knockouts. With Lyoto's chin not holding up well in recent fights, I don't like this fight for him. A win over him isn't going to do much for Lyoto, while a loss would be devastating to career, which is already hanging on by a thread at this point. I love Lyoto, so I hate to say it, but I think it's time for him to retire if he loses this fight. He had a great career and I don't want to see him take any more brain damage.
If he does continue after this fight win or lose, I'd prefer to see him go back up to LHW. He lost his speed advantage when he moved down to MW, which makes his fighting style much less effective because he gets hit and countered. At LHW, he'd be the quicker fighter again, which would allow him to more effectively implement his style. He won't beat guys like Gus or DC, but I could see him beating guys like OSP, Manuwa, etc.