"Ichigo's True Roots"
Aizen, Ichigo, and Isshin have a tremendous ammount of reiatsu, as we all know. Now, take this into consideration.
They all have moon in the name.. Could they be connected?
Gin states it went off doin' it's own thing. So, they owned it. They owned the vastolorde/arrancar thingy that HAPPENS to look like Ichigo's Hollow's true power. Isn't this odd? Yeah, we know his mom was confirmed to be a quincy, which was obvious.. But, Aizen's taking a huge role in this. He just said he knew about him, but this is way more than just knowing.. His zanpakuto also has moon in it, like Engetsu and Zangetsu. We know Masaki is ichigo's mother. Ichigo knows his roots, but he's JUST learning that his mother is a quincy. It's not like kubo to make Ichigo start over with completely new quincy powers. Here's my thought, I think Aizen and Isshin might have some sort of relation, hence why their zanpakuto has moon in the name, AND Ichigo's.
Refer to the kyoka suigetsu picture above, and look at this one, this is engetsu.
Just look at it. As they say, COINCIDENCE OR CONNECTION?
Wait.. read this one.
Engetsu is a fire-type zanpakuto, yet he can use getsuga tenshou.. Could aizen have it too? Just a thought.
-I believe Ichigo, Isshin, and Aizen have a connection
-Ichigo has an actual zanpakuto ability. Flashbacks are used for development, and this will be his development, instead of shouting GETSUGA TENSHOOOOOOOOOOOOOOO The whole time.
-Aizen did something to Ichigo either while he was being born, or as a baby
-Aizen didn't just know about Ichigo, he had a huge role, possibly even a role in CREATING him