Yes, and I'm sure they're very expansive.There are already mods for it.
Because Bethesda released the current version of the [strike]Elder Scrolls[/strike]Fallout CS.
And documented new scripting functions (and this is assuming that anybody has even figured out how to pull the existing scripts out and decompile them yet without the CS. Which I rather doubt, and I'm willing to give myself the benefit of that doubt here since I have a pretty extensive background in modding.)
Oops.
They haven't done that and people are incredibly limited with what they can tinker with until they do.