A player's/team's salary will not change once the new week is live. Even if there is a fire. A lot of work goes into carefully determining the salary of each player prior to the week opening, and that number is guaranteed to stay the same throughout the entire week. Salary updates/calculations are done after all LCS/LEC games are concluded and are revealed at the opening of the new week. The only reason that a salary would change would be if there was a bug/technical error that we needed to correct.
This is our policy even if a player is benched, traded, changes role or anything. We want to provide a rewarding experience on an even playing field for every single contestant that creates a lineup. Whether you create your lineup first thing Tuesday or wait until the last second on Friday, we want to be sure that all contestants are choosing from the same options.