Exclusive Games
1) Kingdom Hearts 3
2) Valkyria Chronicles 1,2 and 3 HD Collection
3) Final Fantasy 15
4) Suikoden 6
5) Uncharted 4

Multiplat Games
1) Tekken X Street Fighter
2) Hard Corps Uprising 2
3) Capcom Vs SNK 3 (URGH I HAVE BEEN WAITING 12 YEARS FOR A DAMN SEQUEL URGGGGHHHHHHHHHHH!!!!!) 

I'm so greedy lol >_<

Price: no more than $450
Multiple hard drives/prices
dualshock 4, I would be okay with a larger one, but please no move dualshock combo
no move at all would be fantastic
Uncharted 4 and Gran Turismo 6 at launch
I'm not much of a specs guy but 4k resolution capable, and fast enough to have virtually no load times ever

If all of that criteria is met I will buy one at launch

Syphon Filter 4 and i'm good to go!!

I'd love to hear about a new Syphon Filter title that will be available on PS4 launch day. Also, since we are dreaming here; how about Hideo Kojima being present and showing off some new FOX Engine and Ground Zeroes stuffs, or officially revealing that The Phantom Pain is in fact Metal Gear Solid related even though we all know it is already.

UC4 on PS4 => Day 1

Full spec list showing strength greater than competition.
Announce price at $324.99.
Show Syphon Filter One remake in hd.
Legend of dragoon returns made by team japan
The last guardian available at launch.
Final fantasy 7-2 trailer to end the show.

I begin crying and swear Sony allegiance while speaking to a gamestop employee for my preorder down payment.

Uncharted 4 as a launch title! I'd be so happy.

A PS3 is sitting center stage. From the audience a magician runs up on stage and throws a white cloth over the system. He shouts some magic words and pulls off the cloth to reveal a PS2. Confused he puts back on the cloth and tries again. This time a PS1 is sitting there. Confuddled he pulls out his Spell Book and looks for different words. Trying again he turns it into a PSP. Jack Tretton runs on stage and flips the Spell Book right side up. The magician now slightly embarrassed repeats the spell turning the PSP back into the PS1. Now using the original spell backwards it becomes a PS2 and then a PS3. With a huge grin on his face he does it one last time to reveal the PS4. Huge explosions as the audiences' brains melt.

$399

launch games:
Uncharted 4
Gran Turismo 6
The Last Guardian

Gai Kai for BC and games on demand for Playstation mobile and Vita.
All PS3 PSN purchases carry over to the PS4.
PS+ is launched with the PS4 day 1.

Dream conference?

Playstation 4 to be released on November 19th at $399 with Grandia IV as launch title.

That would be an instant buy for me. Everything else would be a bonus.

Honestly though, I don't expect a single game announced, just launch window and specs. Pricing and games to be at E3.