I'm all for removing suppressors, short barrel rifles and shotguns, firearms with a bore over .50 caliber, and some AOW's from the NFA, but other things that are on there are "Common sense" gun reforms.
I think there's a possibility to get short barrel long guns off the list because you look at gun restrictive countries like the UK and Canada and they allow their people to own sawed off shotguns.
Suppressors seem to be on their way off the list anyway, so a total repeal of the NFA is not necessary. If the anti's are willing to take baby steps to repealing the 2nd Amendment, then we have to be satisfied taking baby steps on the NFA.