🚀Boosted:

Making Recall opt-in has, effectively, killed it.

Oh, it will still ship.

Folks who worked on it will move on to new features and the ownership will be transferred to the servicing devision (WSD).

After a while WSD will get fed up with the cost of maintaining yet another rarely used shell feature and will deprecate it. Either that or the shell team will rewrite everything again and drop it.

See: Cortana, Timeline, People on the Taskbar, Chat, Live tiles.