Do you seriously think the arena season would end in 6 days without any announcement yet? Lol.
Pre-patch doesn't necessarily mean the end of a specific season. Look at last time for instance, when people abused that stat-bug in Legion pre-patch for ez glad etc. They could do the same, release pre-patch in an ongoing season. I still think that @Goohdx gave a good estimation for when it could drop. All speculation though.
No one got ez glad with a stat bug in pre patch bcus the season had ended in pre patch.
There was 100% a season where the stat bug was live, because I literally know people who abused it.
Was a WoD season, had nothing to do with legion pre patch.
Stats bug was in s1 legion. Loads of people got ez glad because of it - including some twinks