Re: Is there a plausible way to get Deron Williams next summer?
Signed? Nope, too far past cap. Trade after this season? Possible but unlikely. Remember, some team out there will sign him for long-term if he is a free-agent. Lets say the Mavs sign him longterm - they won't trade with the Lakers if they don't succeed in a year or 2.
The only thing I can see is a trade before March deadline rolls around in couple weeks or sign-and-trade in the offseason.