The phrase "to go at the end of the season" means that something will happen or be finished at the conclusion or closing period of a season or time period.
Sentences with «to go at the end of the season»
He will be gone at the end of this season whatever happens. (justarsenal.com)
The jury is out amongst the fans, with the overwhelming majority seeming to want Wenger gone at the end of the season. (justarsenal.com)
It looks like Diaby will be let go at the end of the season too. (justarsenal.com)