Quick question about new game plus

So I realized I missed a rune possibly even some spells in the base game because I haven't gotten the achievement for it yet. I noticed that when entering new game plus when you pick up the same rune from the same area it gets rid of the old one and replaces it with a plus 1 version so my question is that say you missed picking up a rune or spell in your previous playthrough and you go into new game plus if you pick up the item you missed in a previous run will it be a plus 1 version or will it be the original non plus 1 version