how its probably going to be

Backstrom should likely demand maybe 7.5-8.5 million.

Backstrom makes 8.5-9m. More than likely 8.5 million. His first deal was incredible and the caps owe him some money.

Regardless of what Backstrom comes in at, I think the important thing here is that Holtby walks and the Caps don't make any other big moves. Having the extra cap space certainly gives them the chance to be more of a player on the trade market and free agency, probably to get a solid tandem goaltender for Samsonov.

Look what cap space did for the devils