Some have said that this halving won't have as much effect as the last two, but it's still a reduction in monetary inflation from 3.7%/yr to 1.8%/yr, which is far from nothing, and in fact I see it as permanently bringing BTC out of the inflationary era and into the deflationary era. I'm not sure that we'll see 20k again in 2020 (though it could happen), but I think that 10k+ is quite likely several months after the halving. Historically, the post-halving runup has happened some time after the halving, presumably after people started to really feel the reduced supply.
For now though I don't see enough enthusiasm or other upward pressure. To the institutional investors who most push the market, BTC is largely seen as "leveraged gold", but the US/worldwide economy looks fine for now on its surface, fiat inflation isn't a widespread concern, etc. (BTC also has fundamental value beyond its value as "gold" -- a hedge against inflation and fiat collapse --, but this is a large component of the price currently.) So absent any major news, I think that the trendline is slightly downward for now. ("Major news" would be mostly regulatory-related, such as an approved BTC ETF or increased regulatory pressure. Probably the downside risk is higher than the upside risk here.)
One point of upward pressure is that there may have been some tax-loss-harvesting sales in Q4, which would now disappear. Not sure how big of an effect this was. And you might justify early-year volatility as people locking in gains ASAP in tax year 2020.
I predict that we'll sit in the 6k-7k range for some time between now and the halving, and although I wouldn't be too surprised to see prices in the lower half of that range, I'll guess near the high end, leading to my prediction of 6751-6800 on April 1. On the other hand, I predict that the supply reduction as well as mounting worldwide economic shakiness will cause a large runup (at least above 10k) in the second half of 2020. In the unlikely event that I win, please donate the BTC to a BTC-accepting charity of your choice (eg. intelligence.org or fee.org).
Agree almost entirely. This year is most likely to see a low volatility market, with long held support at ~6400. Resistance is at 7600, so that range could see a lot of trading time. Any significant runup in the last half of the year.
Any new ATH will likely have to wait until 2021-2022. Usual caveats/other risks still apply. The price chart cycles are getting longer, and that is only to be expected , as the heavier market cap acts as a damper to volatility.