In Los Angeles it is still there, particularly at the fancy grocery stores. More visibly you see it on some restaurant menus.

I have lived through enough food trends in my life to suspect if something is popular in California it gets popular everywhere. I don't know if that will be Impossible, I mean just meat substitutes.

Also, I think this is one of those trends where people think the change will happen in 2-5 years but really its more like 10-20. There are a lot of good reasons for meat substitutes.