Search for names or also for content (like LayerKind)?
And how could one browse the results?
Anyway, Scripts to search for Layers by name should be available incase you want to use the feature now and not wait for some future version.
It searchs the layer names. Similar search methot like istock.com.(left side)You type the name of the layer, and appear only those layers that you find. If I delete the keyword, you can see again the other layers.
It would be a quick search, when the number of the layers are too high.
In case other users whant the Search for content ability as well: one needs to right-click on a layer, in the Layers Panel, and pick the "Select Similar Layer" option.