The politicians involved have been somewhat duplicitous. The matter isn't settled quite yet, but last I saw they were making a very false attempt at legalizing them. They plan to place such onerous restrictions that chickens are illegal in all places but a few farming lots that happen to fall inside city limits. Those folks will then have a limit of only a few birds, no roosters, with huge living accomodations and perpetual confinement. On top of all of this, there will be registration/licensing fees and mandatory inspections of your property (undefined, I noted, during the proceedings and could be construed to mean your home as well).
Perhaps it's time for a resurgence of the bellevue population of rare Peruvian Ground Parrots. They look just like silkies, but they haven't put a restriction on them yet.
On another note, the actual terms of the law in place now that is being used to ban chickens dictates that no animals but cats or dogs are pets. All of those poor kids with fish, budgies, turtles or any other crawly thing are breaking the law. Bellevue seems happy to collect taxes on the sale of them, though.