The Wild Wasteland optional for TTW that adds Wild Wasteland feature to the capital wasteland and it's DLCs is being removed for 3.0 and will come back later and if I remember correctly it's due to it's lack of quality content. So I figured I would throw out some ideas I have for the wild wasteland optional.
1) Integrate the mod TTW The Family into Wild Wasteland optional
http://www.nexusmods.com/newvegas/mods/60762/?tab=1&navtag=http%3A%2F%2Fwww.nexusmods.com%2Fnewvegas%2Fajax%2Fmoddescription%2F%3Fid%3D60762%26preview%3D&pUp=1
This mod has exactly the type of twilight zone feeling that wild wasteland should have but currently doesn't. The Mod is simple in that it turns the Family into real vampires instead of vampire posers. It's silly as hell but it's extremely awesome and this mod is something I always have whenever I play TTW. The only downside is the needing to get permission from the mod author and also from the other mod authors whose assets are used in the mod.
2) Arlington Cemetery night of the living dead reference
Outside of Arlington House have a dead npc named Johnny by one of the graves with a female NPC named Barbara fleeing a ghoul who is chasing her with here running into the Arlington House. In the movie Night of the living dead Johnny and Barbara are visiting their mother's grave and Johnny is attacked by a zombie and dies and you have Barbara flee to a nearby house during the zombie apocalypse.
3) Point Lookout Jason Voorhees encounter
This is actually easy to do with the jumpsuit, hockey mask and machete already being in the vanilla game. Give Jason Voorhees Supermutant Gargantuan health stats from MMM, make his equipment unlootable and have his machete do like 100 damage. Point Lookout actually works for pretty well as a fill in for camp crystal lake.
4) Mothership Zeta Star Wars encounter
When you are fighting your way through Mothership Zeta have a new interior cell with a bunch of dead jedi and aliens and sith fighting it out that you have to kill. Upon killing the Sith you can loot all the Jedi and Sith for various colored lightsabers red, black, green, blue, white, etc. Since the author of the mod Lightsabers said you can do what you want with the mod and jlf65 added sounds and light to the light sabers in TTW verision of the mod this would actually be pretty cool if jlf65 is fine with his updates being in Wild Wasteland.
5) Mothership Zeta Famous Missing people encounter
Another added interior cell in the cryogenic lab in which you would find the dead bodies of Amelia Earhart, Jimmy Hoffa, DB Cooper, etc
6) Operation Anchorage Dr Strange Love radio announcement
After getting to base camp in the operation anchorage and leaving General Chase's tent you would pickup a radio signal and it would be playing Brigadier General Jack D. Ripper's orders for to secure the base ie camp and when leaving the camp you would see US Troops approaching the camp and getting fired upon and killed by their fellow troops. Basically like how in the movie nutjob General Ripper ordered his men to fire upon anyone approaching the base stating they would be commies all the while ranted about protecting his bodily fluids buying time to kick start WW3. The big problem with this would be taking audio directly from the movie and that would be dealing with copyright...or needing to use a voice actor. Definitely need a Dr Strangelove Wild Wasteland encounter seeing as how OA is heavily influenced by it.
I'll think of some more to add later.

You just have to follow any other requirements (if any) for anything they use.
Point Lookout is JUST the kind of place they found "mysteries".