After watching Worlds finals 2 days ago, and especially after revisiting the teaser video which might have been the best ever, I really think VCT needs an orchestral theme like Worlds. Like, this thing fucking slaps. They make a new version of this same song that came out in 2016 every year and it never gets old. Also it's very versatile. You could make it ultra hype or absolutely emotional, or both, depending on the edit. There were other great League themes like Piercing Light (football montage editors' favourite) or Summoner's Call (OG theme), but there's a reason LoL Esports stuck with this one song for 9 years. I'm very sure they will continue to use this song next year at Worlds, the next year after that, and so on. It's literally Worlds' version of Champions League Anthem.
With a very capable music team, I don't think it's asking too much of them. Maybe something orchestral doesn't suit what Riot wants as Valorant's image, quite apparent by musical style of past Val/VCT themes, but I still think an orchestral theme is better than anything else.