Communist states will continue to disarm their populations until they are restrained from doing so.
The Supreme Court has been dithering on this issue for decades.
An armed society is the biggest obstacle to a dictatorship and prior to the implementation of such a dictatorship is the first step to find ways and means to disarm the public. This process has been implemented time and time again. In US this may be somewhat difficult, as the general public is well armed and most people would find ways and means to keep and conceal their firearms. The only way for such a law to succeed would be to find ways to turn the public sentiment against firearms, in other words ways would have to be found to rile up the public enough to demand restriction of guns or abolish the second amendment altogether.
What better way to do it than to find ways and means to either instigate or promote mass shootings, most likely done and promoted in untraceable roundabout ways. I do believe that there are enough on the left including many so called RINOS who are not adverse to such steps and would do whatever it takes to remove guns from the general population as the initial step towards a total dictatorship.
For this reason it should not come as a surprise if we would see some more, quite possible and sad to say manufactured mass shootings in the future.