maybe 1or2 november before blizzcon release but maybe 2or3 days before s12 starts at 9november. who knows? just wait and relax.
You did only reply on one of the questions I asked about. - I still don´t see a reason to lock the leaderboards now, since the buffs in 2.6.1 isn´t released ? - I could understand they did lock the leaderboards now, if the 2.6.1 was released. But right now it it´s just like all the other previous seasons rollovers ! ?
I think the freeze basically gives them a safe period to which they can roll back in case some exploits rise up when 2.6.1 is live. Last season people found out that necro WD combo and leveled gems to 135+ so when blizzard had to roll back characters they had to go back to that they deemed “reasonable” levels. With the lock they can just go back to the state ladder is today for example and know for sure that was before any exploits.
The part that really sucks, though is all of these season players just tacked on a ton of paragon and probably want to try beat their old times. Now they can't. And once season starts no time for season players to push in non-season. So they have just further divided the rift between season and non-season to the point that seasonal players might as well delete all their non-seasonal stuff as it will never get used.