As far as I can tell, none of these services include any bonus features except for iTunes — but the bonus features included with the iTunes package are not identical to the bonus features that have been advertised for the upcoming Blu-Ray.
The Blu-Ray will include three featurettes totaling over an hour, on ‘Iceland: Extreme Beauty’, ‘The Ark Exterior: A Battle for 300 Cubits’ and ‘The Ark Interior: Animals Two By Two’. The iTunes release comes with the first two featurettes but replaces the third with ‘Special Makeup FX on Noah,’ which just happens to be one of the featurettes that is rumoured to be on the exclusive Target edition of the Blu-Ray. The iTunes featurettes add up to almost 51 minutes of bonus content.
To mark the film’s digital release, Paramount released at least two exclusive clips to two websites today — and I have no idea at this point if these clips are taken from any of the existing bonus features, or if they are unique to these websites.