[mnort9]

I notice an interesting adaption to this in the metalcore scene. Bands release shorter EP's (5-6 song mini albums) more frequently. In some cases 2 separate EP's are re-released after as a combined album plus 1-3 new bonus tracks.

At first I didn't really like this trend b/c I enjoy listening to the full album through on first listen. But I do understand why they are doing this to adapt to the streaming age.

Instead of releasing a 12-song album once every two years, they split that release into 3 every 6 months (5 song EP, 5 song EP, combined album + 2 bonus). As consumers we get the music earlier and more frequently. They get 3 release hype cycles for the same amount of creative work, which is what they need to be discovered in streaming platforms.

[KozmoNau7]

That has been going on in the greater metal scene for a long time. Especially for smaller artists, they put out a bunch of demos and EPs before putting together an album. In contrast to what you're mentioning, often the main tracks of some of the EPs will be on the album, but all of the "b-sides" will only be available on the EPs, but I've also seen examples of multiple EPs being re-released together. Not necessarily as an album in the traditional sense, but as a compilation.