No one knows when bitcoin going to cross $20k, we can't predict. For now its in $11000+, hopefully it will continue to rise until it reaches $20k. But i think not this month.
In a few weeks, why not, it was 20K and it ain't gonna be that hard to reach 20K again, maybe reaching the 100K or 1.000 K, those are harder objecctives for Bitcoin.