It's buddies, sprays, and banners from old battlepasses. Maybe in the future they'll add the BP gun skins, but i don't think they'll ever add the knives unless they increase credit max to like. 25k and make the knives worth that
maybe in a few years. theoretically they could do something like that for Valorant's 5 year anniversary, but one can only hope. i would imagine the demand for the ruin dagger would still be quite high