I also will answer this as who will be rostered, not necessarily playing.
Plax
Favre
Jones
Vick
Plax has a ton of talent in a high demand position and his charge was a) a state offense, not federal, b) did not result in harm to anyone other than him, c) Burress was licensed in FL (expired) and presumably, the gun was legally purchased, registered, and not traceable to any other crime(s), d) the club scene is the bane to the NFL (Pacman, Javon Walker, etc) and given the support of Irvin, Cotchery, and others who are speaking to support Burress, I see a four game waiver appealed down to three, e) teams are speaking of pursuing him or "not interested, why do you ask?" as opposed to Vick and Jones, f) guy shows up to play when on the field. I don't see jail time, he will have a great attorney and guns in clubs not involved in harming others rarely results in anything other than confiscation, loss of gun license (in states that issue), and suspended sentence. Will it be Jets, Tampa Bay, Tennessee, Chicago, even Seattle? He could go for close to vet minimum with incentives after this. Burress could be good financial value to whoever grabs him.
Favre, comes down to whether he clipboards in Minnesota or not. It is really a PR thing as Minn would gain more from Green Bay insight he could offer, than his field presence, as much as that pains me to say. Sad, I think he should have ended his career in GB and been grateful for a long career there.
Jones, a good, not great receiver who has a couple problems. Never a difference maker and with the exception of Cincy, I don't see anyone taking this risk for the limited reward.
Vick, will not happen this year. He will have to spend all of 2009 doing PR rehab. Also, isn't he still on parole with some state charge pending? Maybe I am wrong as I am not following this story closely. I see so many protests that an owner would have to be insane to do this. Oh... I guess he could end up a Raider.