I was on Facebook and a fellow home theater enthusiast asked if a speaker existed that cold replace a recessed light in a ceiling. He wants to use them for Atmos channels without running speaker wires.
I haven't heard of any before. It would be an interesting design challenge.
Even if you had to hire an electrician to remove the existing fixture and install the speaker it might be very tempting.
I know the trend is to go larger but knowing how good my first axiom speakers sounded (QS4 v2's) I think you'd knock it out of the park.