A post on Steam Forums lets us in on some details regarding Half Life 2: Episode 2. The information comes from an exclusive article in the upcoming issue of PC Gamer World:

- Gravity gun will get new functionality
- Alyx is alive, contrary to what the trailer showed
- Vortigaunts will be more fleshed out
- More details about GMan will be revealed
- New vehicle will be introduced made by some guys in the woods. Will serve as enemy rammer
- Eli and Kleiner have set up base in the missile silo and you have to get the packet to them
- We’ll see the UBER and most difficult physics puzzle to date in episode 2
- New weapon known as Strider buster
- A new multiplayer game, could be Team Fortress 2.

Until the magazine comes out, these will remain rumors.