Nobody cares enough about FO1 or FO2 to have good community support/outreach to have it ported into the shitty Gamebyro engine that Fallout NV uses. Sorry, tough truths. Fallout 3 got cancelled because they didn't want to re-do the dialogue themselves, but F:NV as evidenced by this video are...
Huh? It won't be hard to port weapon mods from Fallout 4 into Fallout 4: New Vegas. Weapons of Millenia will be easily outclassed by Fallout 4's superior animation systems. EVE as well.. Project Nevada is the only thing.