The Left would have to be batshit crazy to try and push any type of gun "reform" legislation. There is basically zero Reality reason for doing so, and it'd only cost them political capitol. They'd be far better off going for immigration "reform".
Looking like they are batshit crazy then;
http://www.examiner.com/article/feinstein-rumored-to-be-pushing-semi-auto-ban-if-obama-reelected
California Senator Dianne Feinsteins Washington, D.C. staff held meetings on Friday with FTB/ATF [Firearms Technology Branch/ Bureau of Alcohol, Tobacco, Firearms and Explosives] legal staff to discuss a new Assault Weapons Ban, Jim Shepherd of The Shooting Wire reported yesterday, characterizing the meeting as a rumor based on pretty good intelligence.
Feinsteins rumored bill would ban pistol grips and "high-capacity" magazines, eliminate any grandfathering and ban sales of weapons in possession"