I find them having a show in Seoul for this leg very unusual considering the US, Germany, and London are massive places for Linkin Park. Seoul really isn't. You would've expected the first asian show to be in Japan. It makes me think there could be a surprise at the show. Any possibility we see one of the big korean groups make an appearance here? Alot of groups have a form of connection to them and view them as massive inspirations - Ateez with the Numb cover, Stray Kids with the Linkin Park reactions and the influence they've had on Stray Kids' producer members. Saw someone mention as well that Mike was at Starship entertainment yesterday? Interesting since one of their groups, Monsta X, is frequently compared to Linkin Park. Not to mention the BTS connection too.
Would be cool to see a collab or even a Linkin Park version of a song from one of these groups as the extra song you mentioned.