If it weren't for the breaks for the rubbish international games, we would already be enjoying the Clasico this weekend. But we already have a second pause, given that just 8-9 games have been played in the championships. Nonsense. This disrupts the entire rhythm of the games. Therefore, it is far from certain that we will see a good game and everything you listed will have some relation to it.
Easy man, be patient for the break to be over, you will watch and enjoy the match because a lot of people are patiently waiting to see who the winner in El Classico will be, especially now that both teams are in the same form. This one might be more interesting that last season because Mbappe will be present. How I wish Olmo will also feature in this match, but injury made it impossible for him.
I hope that we don't see more injuries from the international break because that is what do happen. I will bet on Real Madrid to win the match and if Barcelona happens to win Real Madrid, it will not be something new.
If this was a normal game, I would easily bet on Real, but because of the garbage calendar, everything turned into a mess and I'm not sure that the teams are preparing for the games properly.
Regarding Olmo: no surprise. As soon as Barcelona signed him I wrote that he is a monster, but very fragile and almost guaranteed not to go the whole season without injuries. Unfortunately I was right.