I bet on: 78 days season duration and 14 days season break, with patchday 2 days before season start (as usual). Would lead to:
End of Season Announcement: 22.09.
S11 End: 06.10.
Patch 2.6.1 Release: 18.10.
S12 Start: 20.10.
Maybe one week earlier.
Why? With another 70 days in next season, S12 would end at Fr, 29.12.17. This would be on spot.
S4 ended at 30.12.15; S8 ended at 30.12.16. There will be no season start during holidays...
These questions are retarded as hell. It's been only 4 weeks into the season. Do the math. Add 8 weeks.
Each season is roughly 10 weeks. Then there is always 1 - 4 weeks of down time.
The PTR IS FAR FROM BALANCE. All these buffs were needed when firebird archon reign supreme from season 5 - 8. Season 9 - 10 was MH ARCHON. For 6 seasons the barb was underwhelming. They need to buff all the classes but the necromancer now because of the major power creep. Based on all these set buffs LoN is becoming useless now.
They might as well give all mobs the juggernaut affix just to balance this power creep you keep begging for.
MaraxuS80's estimate seems pretty spot on. Also keep in mind that they might adjust season length depending on if they want it closer to Blizzcon - or rather have S13 stuff ready on PTR for after Blizzcon, so this season can be potentially longer or shorter as usual. But I cannot imagine anything before end of September as Don Vu said in a bluepost they have a new balance patch for PTR that'll be deployed on September 10 or so, therefore I think a slightly longer S11 and a S12 that is still "fresh" during Blizzcon isn't entirely unlikely either.
I don't think, S12 will start at the weekend before BlizzCon, nor will it during BlizzCon.
So either we will get a season ending announcement this week with S11 ending on 13th an S12 starting on 20th of october; or we will have to wait after BlizzCon for S12. Lets pray for some news this friday.
btw: Last year S8 started 2 weeks before BC on oct 21th, according to bagstones list. Hope is the last to die.
oh man, i really wish we knew a bit sooner as i usually try to get leave from work during season start. only managed to do that in like 2 seasons so far because i need to let them know a good deal of time beforehand.