This has all the hallmarks of a fake, including terrible JPG compression and a myriad of artifacts around every single word on the page. However, it certainly serves as a bit of hope or at least what fans hope to see at the event. Microsoft will surely win some fans with Beyond Good & Evil 2. Sony will impress with Uncharted 4 and Nintendo will absolutely nail it if The Legend of Zelda: Shard of Nightmare is indeed real and shown off.
But as always, take this with a grain of salt. This is easily the most fake looking leak and rumor I've seen in quite some time.
