Eth 2.0 will be a havoc which might take eth to new ath
That's not significant enough to take ETH to its new ATH.
It's just a system improvement, what we need is the demand and we need big time investors or institutional money to enter the market for ETH.
I believe that most of the top 100 coins will follow the same chart pattern if the projects are legit and continue development. It happened in the last bullrun and it will most probably happen again.
"if the projects are legit and continue development"
Honestly, this wasn't the requirement for the pump in the last bull run. I remember that the totally dead projects (especially the ones with the low market-cap) pumped up the most.
If the 2017-like altcoin bull run occurs, the coins that will pump the most (by ROI) would be the ones having extremely low marketcap and are "low-priced". Last time, the low marketcap coins with huge supply + low price, pumped more than those that had less supply + high price. Make sure you've got a couple of these prepared for the next bull run!
We all know that in a bull run even the "dead" shitcoins that are trading on an exchange can pump and like you said many of the low cap coins can pump the most but do you have the money to throw around and gamble on those shitcoins? Who's to say those coins/tokens are not going to be delisted in the near future from exchanges? How do you know which ones are going to survive? It's all a gamble. Do you prefer to put your money on coins like eth, tezos, ada, eos, litecoin, etc or put your money on things like pepecash or mooncoin?