In all fairness, for me at least, Lightroom seems to have gotten to a place where it does what it needs to do with acceptable performance. It doesn't seem to have a lot of obvious functionality holes.Of course, it also doesn't have a lot of competition which may partially explain the pace of change too.

If I had to guess, I suspect Lightroom will end up as only a subscription offering at some point. It's hard to see why it would remain an outlier. I'm sure there would be great hue and cry but I actually use it enough that I wouldn't be all that bothered.