nah you should have waited, sorry
You will not. Have to be in an alliance 7 days prior to the end of the season, meaning you had to be in before 11am PST on Wednesday.
You can check the qualification/blackout timer on the Alliance Event screen to see when you’re eligible. As long as you contribute after that, you’ll be included in the rank rewards when they go out.
I thought it was 3 days for alliance events… my alliance imploded. I should have left earlier .. I would have received better relic rewards too