The ascot is due for a comeback. I give it a year or two.
I'm not quite sure why I think this. I have a general sense that the plain open collar has played itself out and is getting stale, and there's too much resistance to a necktie comeback --- it's too symbolic of bourgouis '50s conformity --- so there aren't a lot of places to go.
Maybe the ascot will surface by way of hip-hop bling; it's got the right sort of fancy cartoonish aristocratic feel to go with the homburgs and the canes. Maybe we'll get a hit movie set in the 1920s with Jude Law looking good in one. Maybe some fashion designer will just decide it's time.
But it's coming. You heard it here first.