Are they still working through backlog of lettermail?

I had ordered a bunch of movies before the strike. They come untracked from various sellers in Canada via lettermail. And since they came back from strike I've ordered movies again, and while some of it has been slow, it's all come in eventually.

I had two movies ordered back in November that I haven't seen yet. Both we're cheap, $8-ish each, coming to Ontario, one from Ontario, one from the East Coast.

I still see people here and there mentioning that they finally received their package or lettermail from November, December, October even.

So my question is, are they still working through that backlog? Is there any chance this still arrives at some point? Under normal circumstances, I would just assume this is lost and order replacements. But seeing that some people still seem to be receiving things that old gives me some hope.