Yes exactly:

AG1

--Node 01-Primary

--Node 02-Secondary, Syncronous commit.

--Node 03-Secondary, Syncronous commit.

--Node 04-Secondary, Asyncronous commit.

--Node 05-Secondary, Asyncronous commit.

--Node 06-Secondary, Asyncronous commit.

AG2

--Node 01-Secondary, Syncronous commit.

--Node 02-Primary.

--Node 03-Secondary, Syncronous commit.

--Node 04-Secondary, Asyncronous commit.

--Node 05-Secondary, Asyncronous commit.

--Node 06-Secondary, Asyncronous commit.

AG3

--Node 01-Secondary, Asyncronous commit.

--Node 02-Secondary, Asyncronous commit.

--Node 03-Secondary, Asyncronous commit.

--Node 04-Primary.

--Node 05-Secondary, Syncronous commit.

--Node 06-Secondary, Syncronous commit.

And so on.

Developing the read intent routing scripts will be a very interesting project I think; I'm not too worried about that one. It will be allocated a pretty good chunk of time in the project plan.