I was just looking at this screenshot of the coins 1 year ago (18 November).

The top 3 are still the same of course, though the prices changed drastically, it's still interesting to see the other coins drop off and disappear like that.
Can't imagine what next year snapshot will look like.
There will most definitely be lots of movement in the top 10 this year. Im sure a few will drop out and new ones will come in. I also expect skmecof the top 3 to 5 to change also. But even as some drop in rank, all top coins may gain value as more money is coming into the cryptocurrency economy and the overall market cap is increasing. We saw this happen toward the end of last year.