>>15632110It can be whatever you want really.
"You’re now the Pokémon League champion! …Or, you would have been, but you have one more challenge ahead." This could suggest Lance was Champion before, since it implies usually beating Lance is all you had to do until that day (ofc only speculation). In terms of how he became Champion later, any number of possibilites. Red and Blue dropped out, Red dropped out and in the power struggle Lance beat Blue, Lance went through and beat both making Red train on Mt. Silver and Blue become a gym leader, Lance could have slept with Red for the position; all basically as likely as the others (except the last one).
I actually was happy Lance was the champ in GCS. As a kid I felt Lance would be a better champion since when I think "champion of pokemon battles", crazy dragon guy in a cape fits the mold better than prickish best friend (for me at least).