I think it will be around $10k-$12k by the end of this year. There is possibility that bitcoin will be worth more than the previous ATH but I believe it will take few years before we see a new ATH.
I would be alright with $10k-$12k, that's a good price already to end the year.
The low this year was $3200 so with that price at the end of the year, bitcoin would have an increase of over 300%, which is good enough.