Take Pixar, It's the highest profile of the 3D animation studios and can you name any of the voice talent for WALL-E? There was no "top talent" there in any notable role, in fact, apart from one of Pixar's 4 main directors (Andrew Stanton of Finding Nemo fame) I'm pretty sure anyone would be hard pressed to name anyone of note in a major role.
Now lets look at Dreamworks Animation, Arguably number 2 (even though they are more profitable than Pixar and also have the highest grossing animation film of all time in Shrek 2...)
Apart from voice talent in their films, can you name any of the talent in the films? Its a difficult task. The talent is shared among the many people that work there.
The reality is that voice talent is the "draw card" for 3D animation and is one of the minor expenditures for any 3D film.
So let's go back to Pixar, when Pixar was first producing their films, their distribution deals with Disney had them giving up 50% of the profits for the film.... They do all the hard work and only get back 50% of the money.
On that same business model, If you figure out a way to only monetise your film 50% of the the time and not care about it being pirated (even welcoming the filesharers as pseudo distribution/marketing) - you're off to a good start.
If you start reducing the workload on your animators/modellers (using limited cast/sets, animating more with mocap, scripting "extras"... essentially adopting a sitcom format) you can get away with doing episodic content with a significantly smaller team. Keep voice acting internal (even Pixar directors do voices on their films occasionally)... you're reducing costs further.
This I think is one of the ways out to cheaper productions and since online video has been notoriously hard to monetise - its a start.
I've also got a couple other ideas on ways to continue monetising off the model I'm proposing, but yeah, there is potential there.