hello vola,
I don't get what you are asking about. Let me guess you are asking about stellar price estimation on 2020.
Ok then. The increment can be devided to 2 or more points.
1. Price increase.
There is a rumor, stellar will be used as payment service as ripple to help banking or payment sector, such as : on remittance service.
(*source : citation needed, I still don't know this is a fact or just a rumour. You can check by yourself on google).
That means, there is real implementation on this platform.
That cause more and more peoples will be attracted to use this blockchain. So the price increase is very possible.
2. Volume increase
We know currently stellar sit on the 6th rank on coin marketcap (by volume).
If the users is increasing, the volume will also increase.
So it is very possible to gain big-5 or even big-3 ranking on
coinmarketcap.