The Blu-ray release of the final Spartacus season contains Extended Cuts as well, this time actually for every single episode even though there are less differences than there were in the previous seasons. Besides more plot, there's more sex, more violence, more dialog and also alternate scenes. There's any possible difference in it.

The Extended Version of Episode 3.05 contains 5 more scenes with a total difference of 29 seconds.

1:28
More blood in the morgue after the Roman massacre.
3.5 sec

2:50
And more bodies as well.
12 sec

19:59
Extended shot of Crassus and Kore having sex.
5.5 sec

20:12
Ditto.
1.5 sec

22:10
Ceasars co-conspirator leaves upset.
6.5 sec