If it crosses 15k then I think it will be enough for this year. BTC has already suffered the price because of the epidemic and other financial crises. The market looks stable for now and hope this will be work as support and price will go up from here. But we can not predict the future so other people may not agree.
There is no limit for bitcoin and 15K is not a big target compare to what we are witnessing these days, the pump in the market. I think if this continues we may see 20K in this year and even 25 K is possible because as we go higher there will be no or less resistance.
I'm not so convinced that Bitcoin will go so high. Everything is looking fine when price is on the rise but don't forget how easy that can change. Just think how long it took for price to get over 10000$ and that still doesn't mean it will stay there. At the moment we don't have so smooth and continuous growth so I don't think that 15000$ is easy target.