Here are some of my early predictions:
The private sale of firearms (ie:"gun show loophole") is gone. Forget about it, it will be a thing of the past. There will not be a legal weapons transaction done in this country that does not include a background check. Bank on it - there is too much traction for this and the majority of gun owners actually support this.
There will be a lot of our money wasted on medical studies, gun-safe design and anti gun propaganda.
There will still be "AR's", but not new 30 round magazines. The price of a used 30 round magazine for any semi-auto will be so high, you will think twice before firing at the range for fear of wearing it out.
Obama has never met a tax he didn't like. Look for additional taxes on firearms and ammo to pay for school crisis training, counselors, anti-gun propaganda and of course teaching the medical community how to ferret out bad gun-owning parents via interrogating your kids.
Millions of 9 mm owners, who chose the caliber for volume of fire versus size of bullet, will scratch their heads and ask "why did I do that?" - sales of .45acp increase
Look for people who have firearms or wish to purchase a firearm someday to lie to their doctor - or stop going. Look for doctors to over-report potential killers based on the guidelines the Govt gives them. (for example, if you are a gun enthusiast, you are mentally ill.......)