If they see hi res or any other format as a credible selling story they might well go into it
They must be happy with airpods
They invested big time on Beats but could not build on it
Maybe all lossles / hires/ 3D sound will generate new line of products, it is a nice story to sell
Remember whenever Apple gets in 20$ headphone guys start to spend 250$ on shiny new apple ones
So maybe we will see many people with new amp/dacs