The cap is pretty much flat. I heard that it will only increase about $4 Mil.

There are 600+ expected FA's this year. A record.
Half the League is over next years cap already and will have to cut players loose.

The draft class includes a large senior class because there weren't many from the senior class that entered the NFL as Juniors last year.
And this is the largest group of Juniors ever to enter the draft.

It's a buyers market this year. FA's aren't going to find the money they want . I expect a whole lot of 1 year contracts so this years FA's can push their free agency into next year when the cap skyrockets.