This actually looks potentially real. This is a sign printing order form -- the logos are what will be printed on the signs, the number below each logo is the number of signs to be printed. In the upper right corner, it says "Substrate" which is a type of UV printing. 1/8" white sinatra is 1/8-inch thick PVC board (Sinatra is a type of PVC). 42 total signs. The face will be 48 inches by 16 inches. Could be the signs they put above stations for playable games. Might be for a pre-E3 event, rather than E3 itself.
That all of these games would be within reason to have playable stations available by E3 gives it extra credence.
I mean, it could be faked. But the order sheet itself seems real.
I think it's real, there's a lot of efforts that went to the two new logos (Overcooked, Killer Queen) and the sheet itself seems to have a lot of coherent details to it.
It's probably a real printed out sheet of the "side games" booth (aka not the one with the big hitters Smash/Pokémon/etc).