I genuinely can't imagine an outcome where these don't become commonplace. Not going to predict that they're going to replace beef or anything, but it won't be weird to get a meat substitute burger from Wendy's or the like.
You can already get them from places like White Castle, so I'd say you're right. What I'd really like to see is for the price to drop to a bit below that of the beef patty to help entice people to switch.
