ah, I see.
half an hour left!
so, Activision is confirmed: http://news.cnet.com/8301-17938_105-10441275-1.html?tag=mncol
all the Arcanum and Gabriel Knight guesses were correct then.
there are a lot of IPs I'm not sure if really belong to Activision, but would be nice, like Time Commando, which was published by Activision in NA, but by EA in Europe.
but with the different characters hint I still hope it's not only Activision but also EA.
the words above were backed by NUCLEAR WEAPONS!