Too early.
I'll assume that Baldwin, Lockett are locks. Richardson I fully expect to get PUPed, then subsequently IRed. But he's a lock if he's on the roster
I kind of think everyone else is potentially on the bubble.
Kearse, I believe is the safest. But if more than one of the bubble WRs really emerges, I definitely see a cap reason to drop him. This team is against the cap. And club control factors into roster decisions much more prevalently amongst the rotational players across the board.
Lockette is probably second safest. If we're talking about the 5th or 6th WR in the group, then ST value is going to figure prominently. Lockette is very good in that respect. For us to waive him is going to require his replacement to bring something to the table in that regard. T. Lockett is essentially a replacement for what we lost with Tate. We're not going to finally get Tate's replacement and then similarly lose ST value elsewhere. Ultimately, we don't have a ton of club control on Lockette either. Replacing him isn't vital in 2015, but factors into the 3 year plan starting in 2016. If a rook gets close Seattle could do a preemptive move here.
Matthews and Norwood and Williams really seem to be vying not just for a final roster spot, but also the potential to kick Kearse/Lockette to the curb. Again, Matthews has the least club control here. So that could certainly factor in if all things are equal. In my opinion, there is significant competition amongst the 4th+ WR spots.
It's also not a guarantee that we go with 6 WRs. The competition at RB is equally fierce. It's conceivable that we keep 6 there and only 5 WRs. Seattle didn't just have issues at KR/PR. Our ST blocking took severe hits with the losses of Maragos, Robinson and Farwell. I'd say those losses were greater than the loss of Tate.