Cd's to make a come back in the future?

Just be sure you have plenty of provisions. 😬

My cd collection is probably only valuable musically to me. I mean how much could I get for 300 goth cd's or 200 opera's? 
I've been verbally threatened  from going weekend thrift store pilgrimage shopping..........
Only time will tell.......

If this can happen, why not a CD comeback?

https://www.theguardian.com/music/2019/feb/23/cassette-tape-music-revival-retro-chic-rewind

CDs need to fade away before they can stage a comeback.
They are nowhere near the “ extinction “ level that vinyl was at.
I do not see them ever reaching the same state that vinyl did or  indeed ever reaching the same status as vinyl has.

uber makes a great point in that they have never really left us. As far as them ever being really popular again, I think it depends on the advancements that are made with DAC sound quality. That said, there has been notable advancement in that area over the last 5 years or so, it could happen. On the other hand due to streaming, it probably has as much chance as disco or the hula hoop to ever being popular again. Who knows.