Here's my guesses for the show ....
1.) 1 Level 5 JRPG reveal. Either Ni No Kuni 2 or Dark Cloud 3. If it is Dark Cloud 3, I will freak the fuck out. Not to take anything away from the awesomeness of a Ni No Kuni 2, but Dark Cloud 3 is one of my dream games. Right up there with DQXI on PS4 and FF7 Remake ( which ended up being nothing like I wanted unfortunately ).
2.) Street Fighter V character reveals
3.) Yakuza 6
4.) PS2 Emulator unveil. Staged rollouts of titles, digital downloads. Software emulation.
5.) The Last Guardian. Brand new footage presented by Yoshida + Ueda. Release window announced.
6.) Final Fantasy XV footage + release date announcement
7.) Hot Shots Golf reveal
8.) Monster Hunter PS4 reveal ( 5? )
9.) Deep Down showcase / release date announcement
10.) Resident Evil 7 reveal
11.) Dragon Quest Heroes 2 showcase
12.) Dragon Quest XI showcase
13.) Dragon Quest Builders showcase
14.) Star Ocean 5 showcase.
15.) Persona 5 showcase + playable on show floor + release date announcement
16.) Morpheus presentation
17.) Tekken 7 showcase
18.) new sega game announcement
19.) colorful platformer project reveal from SCEJ
My " last big game " type announcement, going out on a limb, a SCEJ - Mistwalker project. Huge budget. Sakaguchi producing. Chrono Trigger style combat system ( aka open world but when you touch an enemy, you line up for combat in real time ).
Major presence at the show will be Capcom, SquareEnix, SCEJ
I think they will replay the FFVII Remake announcement trailer.
I also think this show will be a JRPG barrage the likes of which we have not seen since the PS1 days to be honest. Just tons ... TONS of JRPG's down the pike