Sasuke is not the incarnation of Indra.

[ColdSummer]

9 out of 10 times Kishimoto takes the most obvious, straightforward route in this series. He has been building up this connection/juxtaposition between Naruto and Sasuke for a long time. Sasuke is almost certainly the reincarnation of Indra or at least the inheritor of his chakra.

 

[the last uchiha]

There are several reasons why Itachi can't be indra's host.

1. He would never try to kill his brother, something indra seemed to do.
2. Itachi is the manifestation of God himself, so there is no room for indra.

this ^^^^^^^^^^^^^^^^^^^ x 100

 

[Zavage10]

Are you sure?