I see the Kings as needing to wait for the next batch of AHL guys to make the team and start having an impact. It's doubtful that impact comes next year.
16-17 $680,555
17-18 $1,180,555
18-19 $2,180,555
19-20 $2,180,555
20-21 $3,680,555
21-22 $3,680,555
22-23 $1,805,555
23-24 $1,805,555
24-25 $1,805,555
26-27 $1,805,555
27-28 $1,805,555
The next 2 years is about the biggest benefit from a buyout. This is also a time when the Kings are trying to sort things out. Then you tack on the Richards cap hit and the Kings have a good amount, around $3M, of dead cap until some time close to 2030.
The problem with buying out next year is that the cap hit is set in stone. There maybe an opportunity in the next year or two. Maybe Brown gets a career ending injury, maybe he goes fishing in the off season with Richards. Who know what could happen. The second the buyout is done there's no changing it. Waiting allows the opportunity to try and find another way out.
Also the buyout's biggest benefit is in the next 2 years while the Kings are in the middle of a retool. It would make much more sense to trade Brown with 1.8M retained as it would only last half the buyout period and be equal or cheaper then all but 2 years.