You are being trolled.
There is no ARG.
Wheatley's speech was set in Portal 2 fiction - that is all.
There has been no directive from Gabe to leak anything. That is all false.
I just want to say this so there is no confusion. This is the community trolling the community nothing more. While it is nice to see people excited about anything HL, I hate seeing people be trolled like this.