Below $1000 rather hardly possible, but we may observe a real crypto winter for some time, due to the chaos related to FATF and new AMLP legislation, which can be a real problem for processing the transactions from one wallet to another (necessary verification of sending an receiving party wallet ownership, black list of countries and individuals - like with bank transfer).
Why is the possibility so small to have it go under $1k? 10 years is a very long time span, there are so many possibilities, so many things can happen. Having so many LARGE countries already testing their national cryptocurrency, I can even take into consideration the possibility of Bitcoin becoming illegal through law due to "high volatility", "high risk", "money laundering" and "illicit activity" which would obviously be the statement any national cryptocurrency-developing country would use to promote theirs.
Although Bitcoin is open source and has been alive and growing for so long, there are so many things that might happen including the "death" of it caused by the lack of development and growth, or the lack of interest from miners. There are so many projects and companies that went well for many years and turned into a failure in the end. $1k and under is very possible, and likely +50% of the people saying right now they'd buy at $1k and under would change their mind by then. It's the panic and the FUD spreading around that influences you subconsciously.
By 2032 the crypto economy should be far more mature, and in theory volatility should have dropped.
Not sure what to say about that. Volatility will still be there unless there's a factor that would control it. For now, we mostly have whales doing it.
LATER EDIT:Wow, I just noticed the OP is from November 2019 .. should check the dates more often