Just a general question, I've only modded for Fallout 3 and NV and only know the legal side of Bethesda's Modding Policies.
Basically, Bethesda doesn't allow the use of Copyrighted assets from both other games AND its own (you can't directly port assets from, say, Oblivion into Fallout NV, without some dependency on the users ownership.)
If a mod does require cross game content, they usually require the user to rip the content themselves or at the very least, own the games from which the assets are ported (This is how it works for A Tale of Two Wastelands, a mod that basically takes the entireity of Fallout 3 and puts it in New Vegas.)
The most popular Modding site for Bethesda games, The Nexus, also enforces these policies and bans any kind of content whether its clear copyrighted materials are used or even if its in question (Nexus airs on the side of caution because Bethesda has shown to be willing and able to utilize legal means to get what they want)
So I guess that leads back to my question; What are/will be Volition's/Deep Silver's policies on using both cross game content (porting animations, weapons, armors, etc from older SR games to newer ones) and using content ripped from other games. I think having this information at the ready will be helpful going forward, if its already been stated then my most profound apologies.