The Raiders have voided Richard Seymour's contract, escaping from a salary cap-strangling price. Bringing Seymour back for the 2013 season is what seemed like an extremely bad idea early on in the off-season but now the idea of bringing him back may not be an impossible thought.
Richard Seymour has seven Pro Bowls under his belt, two as a Raider but due to his age and injury-filled season in 2012 where he missed half of the games, his price has dropped, A LOT.
Signing Charles Woodson could also be a factor. Maybe Woodson isn't the same young shut-down cornerback he once used to be, but he is still a solid defensive back who could still contribute to a team, and that could convince Seymour to drop his price even lower in order to return to Oakland.
Vance Walker is a capable starter with a lot of potential but Pat Sims is still questionable if he can be a player that can make impact. Seymour is a very capable starter and if injuries kick in, Pat Sims could step in and be a decent replacement. So signing Seymour to a cheap contract would make it impossible for him to hurt the team.
Reggie McKenzie could possibly sign Woodson and then re-sign Seymour to a cheaper contract, but the chances of that happening are still relativity low but you can never stop dreaming.