Is it too much to dream of Grim Fandango, Full Throtle and Day Of The Tentacle ?

Unexcelled, Unsurpassed, giving an air of finality to it
I think it's just some kind of fantasy, that perhaps Eidos might be coming, hinting at Deus Ex, Thief, and Final Fantasy.

Full Windows 7 compatibility?

darn it I just spent 3 mins reading through to make sure it hadn't been said yet and you go and beat me!!! ;)

It's a new publisher.

It means either that it's Forum beta 2.0 coming, or that your crystal ball is defective. :-D (Be sure to have the receipt at hand, just in case...)

EA? For such a count down, EA is the only big announcement I can imagine that comes with a big injection of Good Old Games for sale.
Theme Hospital?
Theme Park?
Syndicate Wars?
Sid Meier's Alpha Centauri?
Dungeon Keeper?
Populous?
C&C?
Desert Strike (and sequels)
Sim City 2000
Sim stuff
Ultima Collection
And much more!!
Can another single publisher match the quantity of good of old games?

Awesome, I'll be able to buy System Shock FINALLY in about a week! This is great!

Tom just went Medevil on some asses, and mead, and fire, and MEAT.... maybe were getting some Total War?
LMAO that would kick ass...
unExcelled
ex⋅cel/ɪkˈsɛl/ Show Spelled Pronunciation [ik-sel] Show IPA verb, -celled, -cel⋅ling.
–verb (used without object)
1. to surpass others or be superior in some respect or area; do extremely well: to excel in math.
–verb (used with object)
2. to surpass; be superior to; outdo: He excels all other poets of his day.
Origin:
1400–50; late ME excellen < L excellere, equiv. to ex- ex- 1 + -cellere to rise high, tower (akin to celsus high)
Synonyms:
2. outstrip, eclipse, transcend, exceed, top, beat. Excel, outdo, surpass imply being better than others or being superior in achievement. To excel is to be superior in some quality, attainment, or performance: to excel opponents at playing chess. To outdo is to make more successful effort than others: to outdo competitors in the high jump. To surpass is to go beyond others, esp. in a contest as to quality or ability: to surpass one's classmates in knowledge of corporation law.
In Other Words; Impossible to be improved upon. That could be Deus EX.... or Big Rigs: Over the Road Racing

If they got Deus Ex, that means a possibility for Eidos games, including Hitman and Thief. Unlikely, but fun to think of.

Let's just use our magic 8-balls instead!

Lemme guess, we can unlock Witcher : The Legend of White Wolf second teaser trailer for consoles by doing someting silly! :P now that would be unexpected wouldn't it?
But seriously:
Finally GOG manages to sign a deal with major publisher.
Website 2.0 upgrade finally done.
GOG leaves beta stage
Now what else could it be...

That. And a big one, perhaps the biggest publisher of Good Old Games back when they were released.
So I'd say it has to be EA, maybe even including Lucasarts games. I can't think of anything bigger than that. And if it is EA, it will include all the Origin and Microprose games - lots and lots and lots of FANTASTIC old games.
One man can hope, can't he?

Hyping up a game that is already on most of the DD services would be incredibly lame.
This rules out Deus Ex and X-Com, so I am quite sure it is either a major publisher deal (Microprose is my best guess) or something completely unrelated to the games' catalog.