If we could see both, that would be one hell of a confrecne. Any details on Horizone would be amazing. 

Criminal Girls: Invite Only + Akiba's Trip PS4 4K Combo Pack and maybe whatever Sony Bend's working on :/

Uncharted 4: A Thief's End
Until Dawn
Persona 5
Disgaea 5: Alliance of Veangence
The Last Guardian
Final Fantasy XV
Kingdom Hearts III
God of War
Gran Turismo
New IP

Can't wait to see more Abzu.

Here's hoping;
Legend of Dragoon 2!
Rogue Galaxy 2!
Ni No Kuni 2!
Dark Cloud 3!
Dragon Quest (12?)
Valkyria Chronicles 1-3 HD Trilogy Collection!

I expect SoE (or Daybreak Game Company) will make an appearance in good faith to Sony...probably show off the PS4 versions of Planetside 2 and EverQuest Next.

uncharted 4 release date

ps4 1tb standard for 399

update or hopefully release date for project m

UC4 gameplay, Gran Turismo teaser, God of War something, and gameplay-videos for other games. I really hope for Shadow of the Beast but I guess I'll be disappointed.
And of course Morpheus to build up hype for it.

I expect Sony to announce The Last Guardian as PS Vita exclusive, and they will show a trailer for it and at the end there will be a quote that says "Now buy a fucking Vita".

lots of games, that's for sure, release date of FF15 and KH3, and it's finally going to be time to talk about...

...The Last Guardian...! O:

Would love to have a PS4 Slim model getting announced for October/November '15, followed up by the price drop at Gamescom. Which seems unlikely of course, because Sony wouldn't announce the Slim like 4 months prior release. But PS4 slim + price drop + MGS V at the end of this year would be bittersweet!

else:

GT7 announcement
Agent re-announcement
New God of War
three new exclusive IPs