The event, which opens from June 25-26 in the French capital, offers intensive training sessions for visiting developers, with each class being taught by industry experts behind some of the biggest games in recent times.
I would guess this is the day the Alan Wake devs are there for.
Adding to that list of trainers is Sony Computer Entertainment Europe, which on June 24 will open a special Master Class centred on PS3 programming. The class will be free to all registered PS3 devs who are attending at least one other Master Class.
This is a seperate class which has no relevance to the aforementioned day. It does say PS3 developers attending other classes will be welcome but that doesn't lead me to believe in anyway they're said they'll attend.
In summary I think you're reading too much into it although we should know for definite if there is no announcement during E3.
