I’m sure they realised that. But they would do it anyway. I mean, they build up the hype, and they show their masterpiece. If there is a thing that I’m sure about this “surprise” is that it will be so good.
You are right. But… Why would they cancel an event for Portal 2 for showing a surprise related to Portal 2? Think about it. If it’s just Portal 2, and the surprise is still being related to Portal 2 why would they cancel the event?
Maybe it’s not Half-Life related :’(. But I don’t think it’s about the Portal 2.