I am not sure what is left aside from the single stack pistols.
Off the top of my head: Gen 5 G45 with and without optics, Gen 5 G19 with and withput optics, G19x, Gen 5 G26 with and without optics, the whole G43 family (optics, no optics, X, short grip), the G43 variants, and G47 are all sticking around.
That's probably 80% of their sales right there.
Also it sounds like they'll keep selling Blue Label to agencies for some of those models.
The news threw the juicy switch tidbit in there, but I'd bet they are just streamlining and cutting low sellers in front of what looks to be a 4 year or longer dip in the US commercial gun industry.