That's a good question. With 2016 almost over, I've been looking for the best answer to that on different men's fashion websites, blogs, instagram posts, and a few youtube videos. I clicked on a link that said long hair will be in and the new thing, but then when I got to the article it was all pictures of guys with fades and undercuts. I have a client who I've been giving an undercut to for a few years now, and at the beginning of 2016 he was looking for something new, checked a few websites, and found the same thing as me--that undercuts were the "new" thing for 2016. I'm not knocking the haircut, it's one of favorites to cut in the salon (and one of the best looking haircuts in my opinon, I was just using that example to make the point that men's haircuts don't change too much over time. I mean guys are still getting a haircut make popular by Julius Caesar. One thing I have noticed about the current trend for men's hair is that anything goes, which could explain why that particular haircut has lasted so long. When you can do whatever you want nothing (which exception to avant garde styles) really goes out of style. I don't know about other places, but in Los Angeles you can feel free to get that trendy undercut, grow your hair long, get a business/professional haircut, or pretty much anything you can think of. As long as it's cut properly and put together, your hair will look its best.