if the 2.0 version will be released together in time of bitcoin Miners halving?then we may see ATH and cross the $1,500 price last january 2018.
IMO, that's not guaranteed, what if ETH 2.0 was launch last year and we know that bitcoin is not that bullish as we are expecting, I think that update would still not gonna push for ETH to rise that high. You are talking of the new ATH, the last time it reached its ATH was when Bitcoin went to $20,000, so I think we need the similar situation.
I feel that we need to look at people's responses to ethereum 2.0, if there is information about it, we can measure it from that. when the price of bitcoin was $ 20000, I thought at that time ethereum had a pair of 0.1 bitcoin for 1 ethereum, at this time ethereum was only 0.022 bitcoin, so when bitcoin price reached $ 20000, ethereum's price would not reach or approach the new ATH. however, if the development of ethereum 2.0 is very positive and makes the bitcoin pair go up, I think the new ATH can be confirmed, even more so if the price of bitcoin goes up.