For me this really depends on the band. For example, Vivid and royz didn't need re-recs of anything. The re-recs actually sounded worse in my opinion. For bands like Awoi, sadie, mejibray (In some cases), Diaura (in some cases) needed re-recordings for songs. Some people might argue against this and be like no the original is the best then you have special cases where like for example: The Original ver. of Mejibray - killing me sound worse the the remaster. But then you have songs where its the complete opposite. I loved grimiore's re-recordings of there mini i feel as tho those brought me to like the band more. Some bands do that then i end up liking it better or maybe a different vocalist does the same songs a bit different. These things tend to happen and highly depends on the line up for me.
I like it when bands make a 2nd or 3rd press of a release. It shows more how the band progressed and shows those songs that you might have liked from a single to shine more as opposed to an album.