So what has to happen for Bruen to dispose of GCA of 1968 and subsequent damaged caused in 1986 by Reagan?  Text and traditions is a pretty large blanket.  

I'd really like to own a machine gun before I die and not have to take a second mortgage for one.

Unfortunately it’s not likely at all likely. We’d probably need 7-2 on scotus and Robert’s being replaced to have a decent shot at scotus.
That means we need 8 years of a Republican president starting in 2028, a Republican senate blocking appointments from 24 to 28.The sea change is going to be if scotus rules AW bans and mag bans are unconstitutional.

We just had the first circuit rule that a mag ban is consistent with Bruen, so we’re still very far away from a world where the MG ban goes.

FWIW    https://www.youtube.com/watch?v=DtEULymCNNo&t=2s

The NFA isn't going anywhere

Slim to none. After listening to the hearing the other day at scotus, there was no mention that machine guns should be legal etc, justice Thomas seemed to imply that a bump stock maybe should be illegal because it effectively makes it a machine gun.