My prediction? Season 2 will start one week before the first DLC goes live. It seems to me that a season is just the official term they decided to call the content/game rule changes they releasedperiodically with D1. It doesn’t necessarily always happen with a DLC release either; they’ve announced only two dlc’s so far but I believe they said there would be four seasons in D2’s first year.

I think a TWAB mentioned that the season rollover would be day and date with the DLC.

I'm guessing the schedule going forward will look like this.

Release

Sept 6, release date, season 1 begins

Dec. 5th Curse of osiris, season 2 begins.

Feb. 7 Season 3 begins, with a small infusion of free content/ substantial systems upgrade similar to the april updates of the past, which introduced things like POE revamp/scoring. POssibly private matches/ PVP focussed, if not here, the next upgrade

May 9th/ June 6th - Rasputin DLC/ Season 4 begins.

September : Large scale TTK style DLC released

- Iron Banner returns and the game is Clash! Last Iron Banner before Season 2 starts, so if you want to grind for the emblem, this is your only remaining chance.

What are seasons exactly? What resets?

Mostly it seems like just the Eververse. All the stuff she offers will go away (except for shaders, I think) in favor of a new set of stuff.

Clan level will also reset back to 0, with new perks to unlock for leveling up.

I think they also said this will be the time for big balance/sandbox changes.

The end game activities (Trails, IB, maybe Raid, but I can't remember) will now have Ornaments to unlock.

Here's a reddit postthat summarized the live stream in which they talked about Seasons.

- Iron Banner returns and the game is Clash! Last Iron Banner before Season 2 starts, so if you want to grind for the emblem, this is your only remaining chance.

What are seasons exactly? What resets?

Highlights:

- Cozmo had a baby!!!

- Livestream recap

- New Monarchy won the faction rally and everyone can buy a sword. I am disappointed, personally. FWC FTL, I guess.

- Iron Banner returns and the game is Clash! Last Iron Banner before Season 2 starts, so if you want to grind for the emblem, this is your only remaining chance.

Some bugs or whatever and then a few movies which can't be that good because I didn't see them posted here yet.

Cheers!