So... Phase 4 and beyond, speculation ...

[ArkhamNative]

(Edit: What Mjollnir said.)
Every time Yoshi-P mentions Early Access he has estimated 3-5 days, starting with a video he made the week before they announced everything. If there was mention of 7 days on any SE site, SE seems to have removed it. It may turn out to be more than 5 days, but I wouldn't expect it to be.

Also, whatever length of downtime SE is scheduling between phase 3 and phase 4, it's probably because they need it. Also, according to the roadmap:

* Dates and content are subject to change depending on development progress and user feedback.

Edit:
As for the OP's schedule speculation, it seems pretty good. It's no more than 1-2 days different than what I might guess.

[HiirNoivl]

(Edit: What Mjollnir said.)
Every time Yoshi-P mentions Early Access he has estimated 3-5 days, starting with a video he made the week before they announced everything. If there was mention of 7 days on any SE site, SE seems to have removed it. It may turn out to be more than 5 days, but I wouldn't expect it to be.

Also, whatever length of downtime SE is scheduling between phase 3 and phase 4, it's probably because they need it. Also, according to the roadmap:


Edit:
As for the OP's schedule speculation, it seems pretty good. It's no more than 1-2 days different than what I might guess.

Well the main thing is that things that were going to be put on hold until one phase were squeezed into another (Like Duty Finder). Other things that were supposed to be in at launch were squeezed into P4 (speaking specifically of Arcanist.).

Fisher was going to be pretty thin at launch but the devs on fisher got a bit excited and wanted to add more things so that was pushed back.

People are going to throw tomatoes at me but I think we could really do with more testing (*SPLAT SPLAT!* Eeeek! ) But you gotta release sometime.