I really doubt that ETH 2.0 upgrade will start in Jan 2020. There is still much work to do that can't be accomplished by then. And there is no point to set a date before the Bitcoin halving, since the main flow of capital will be in Bitcoin at that time. But if the upgrade starts in 2021, this will be better for ETH. I guess the price will continue to move in 200-300$ range, although a crash back to 80$ is still possible. But let's not forget that yearly 18 000 000 ETH are mined, which is about 18% yearly inflation. The pressure of the miners selling out is always a big factor. On the other hand, after the Casper or whatever they call the POS upgrade, the yearly inflation will be less than 2% if there is at all. It depends how many will stack ETH. Once the pressure of the miners selling is removed and an upward trend starts, there will probably be another huge increase of the price up to 0.1 BTC or even higher. The question is how many will have the patience to lose money until that recovery. Not many I guess.
Disclaimer. I am a miner with 5% of my stash in ETH. The rest is in BTC. I have no plans to invest in near future in ETH and wouldn't advise anyone for that. But for those who hold some (I have some friends that ask me the same question), I advise not to sell and wait for better times.
Ethereum 2.0 upgrade is what most of us, and all of Ethereum investors have waited for months, so it will be really great if we can see that upgrade in 2020, just within the first half of 2020 is great enough. For now, no one knows when that upgrade will be prepared, tested enough to be ready to launch on mainnet of Ethereum. However, I do think that Vitalik, a genius guy and his strong team will be able to do that upgrade smoothly, at the right time. Now, it's time for us to enjoy the weekend and last days of altcoin bear market. I think altcoin season will begin in just next one or two weeks.
