I'm still dead-set on QuakeCon, myself. Be careful though, or we'll do what we did with the GI cover and twist facts to suit theories and not vice-versa.
We weren't twisting facts with the GI issue. They fit a TES:V release perfectly. They just happened to fit DA:2 perfectly as well.
QuakeCon is a glimmering hope too I guess, since we have that quote from Pete saying announcements are more likely to take place at venues such as QuakeCon than E3, and that the company is looking to overhaul the convention. Though what that all means is anyone's guess, and could simply be hinting at a Doom 4 announcement (which everyone expects and knows is in development anyway).
We also had our trademark theories as well to point to a GI and QuakeCon announce... but for some reason trademarks are just as easy to refresh as they are to renew, so we can't rely on them anymore it seems. QuakeCon is still a small hope, but little more than that I'm afraid.