Bill Blair's revised firearms legislation?
Parliament rises for summer recess in a couple of months, and C-71 isn't law yet. Just getting C-71 passed and implemented will keep the powers that be busy.
An entire new piece of legislation drafted, passed and enacted prior to the election? Not impossible, but how likely?
Orders-in-Council... That is entirely another thing. Government by decree is always a possibility, and probably attractive to a politician who admires the Peoples Republic of China.
Would semi auto, non detachable magazine firearms specifically made for sporting purposes be banned? Who knows, but unless a ban were for everything, probably unlikely.
Would Ruger put the old tubular magazine .44 back in production? Doubt it. Not as cost effective to build as the Mini-14 derived .44. And they discontinued that one as well.
So, barring a ban on everything, I think the old .44s will hold value and continue to have a following.