I think maybe a patch with an expansion of the Enclave Remnants, but's thats it.
We've flugerized enough of the Enclave over the years.
Maybe a Followers DLC? Or a Kings one?
Actually, any minor faction in FNV (aside from NCR, Enclave, or BOS)
If these potential DLCs were well cooked before they came out of the oven, there would be plenty of happy Fallout gamers.
This ^
A Followers or Great Khans DLC would be best. But as stated above, any minor faction DLC would be good. An Enclave DLC would make little or no sense concidering what happened to them in FO2 & FO3. Only a DLC interducing a new minor faction of people who are decendants of an Enclave group, ( a generation or two removed), would be only if handled right. Meaning they'd have limited old Enclave resorces, and a reason, (a good reason.... lol), to be around.