After Smyth was traded back to Edmonton and Penner was traded to the Kings it looks as if there's a good trading relationship between the two teams.
Drew Doughty and the Kings management are still playing hardball with the contract talks, which makes it easier for the Kings management to consider trading him for Ales Hemsky.
Let's be real though. Every team in the NHL would want Doughty. With that kind of bargaining chip you could expect a better trade.
The recent Kings to Flyers trades should indicate what the Kings will give up to win sooner rather than later. Not sure why Drew hasn't seen that part yet. (Hint, take a 1 to 2yr smaller contract and go for broke. Aim for the cup Drew. Your current team is.)