Planescape: In AD&D 2nd Edition Planescape was my favorite published campaign setting produced by TSR. It even birthed my all time favorite RPG, Planescape: Torment. Nothing published by TSR or their successors has come close to topping it for me. The Planescape game I DMed with my original group of players was perhaps one of the most successful games I have ever had the pleasure to run. It was the only one of our games to, not only survive the transition from 2nd to 3rd, but thrive afterward.
In December Wizards of the Coast will be releasing the latest edition of The Manual of the Planes. With this book I believe we will be able to create our own Planescape game. Unlike Twilight this will not be a direct sequel to one of my previous group's ventures. Though it will still be Planescape at its heart the multiverse has changed drastically from 3rd to 4th. This will be a new and exciting experience for new and old players alike.
The Mist (working title): Completely based on Stephen King's The Mist, this game would take place on Earth after a rift to another dimension has been opened. Though the game will begin in a similar fashion to the above mentioned story it will continue long after the characters set out into the unknown. They will find that the world they know so well has become an alien landscape infested with strange wildlife and even stranger people. During their journey they will discover new abilities within themselves that they never dreamed possible. If they have what it takes they will use these abilities to help save their world.
This campaign will be directly linked to Twilight as it takes place on the world Marissa left behind when Milon summoned her to the Dark Realm. Her forbidden departure from her reality had dire consequences for the Earth she left behind. Below I will list some of the other sources of inspiration I will be using for this game: Silent Hill, Jacob's Ladder, Hellraiser, RIFTS, Event Horrizon, Halflife, and the stories of H.P Lovecraft.
A Space Odyssy: Whether we play in The Star Wars Universe or one of our own making, the Star Wars Saga system is a brilliant vehicle for a science fiction story. In my personal opinion it might be better to create our own galaxy far, far away so we can be free of Lucas' stories. The system is a bit different than 4th Edition so I would not even consider starting such a game until I am confident that we are all comfortable with the 4E rules.