I'm looking for ideas on how the search landscape is about to change in the next 2-5 years.

We all know for a fact Google wants to answer user query on SERP landscape itself, that's why we Knowledge box,schema, top story carousal, video previews

What do you think will the google SERP look like ?

I think AR would be a major factor in coming years, its already live for google maps as revealed in Google I/O 2019.