Because in my estimation, they aren't going to announce something too far out from release date. Assuming the earliest release would be Fall, 2011 announcing this summer isn't exactly news for something over a year away.
They announced Fallout New Vegas in Feb this year for this Fall's release. I would guess ESV will be so mammoth it will be prone to at least the same delays as Fallout 3 encountered.
Maybe also factor in by Christmas 2011 there could be new consoles rolling out so console versions could take much longer. If they can release before those complications it could save a whole lotta problems.
Morrowind was released 2 years and 2 months after it's announcement, and it was 1 year and 6 months for Oblivion. So it is in fact very likely that they will announce the game far away from the release date, as that's what they've always done. That's not to say they can't release it earlier than that, but the point is that Bethesda is perfectly fine releasing a game more than a year after they announce it.
It's pretty unlikely that new consoles will be coming out in Christmas 2011, for a few reasons. E3 2010 will be where Microsoft and Sony show off their motion controllers, so even if they did have new consoles, they wouldn't reveal them until E3 2011(after all, who would buy their motion controls if new consoles were coming out). And even if they revealed them at E3 2011, they likely wouldn't release them until Fall 2012. But that's all really unlikely anyway, simply because Nintendo, Sony and Microsoft have all said that they don't see a need for a new generation yet, and nearly all anolysts say that a new generation is a long way away.
It looks as though the wait is over!
http://planetelderscrolls.gamespy.com/fullstory.php?id=162212
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:blink:
:celebrate:
I see they didn't even try to make it sound believable...