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The proposed magic number?
Some background: TheThronesteam first told EW a version of this idea back in October.

Credit: HBO
Weve been holding on publishing because of the level of uncertainty involved.
UPDATE:Will HBO make a Thrones spin-off?
Executive, producers discuss.
A show that resonates this way and works on all levels, its painful to imagine it ending.
At the same time, David and Dan have a big responsibility and I respect that enormously.
SinceThronesis also evolving past the story in George R.R.
Martins novels this season, theres no longer even fan expectations that the show will follow a certain path.
We wanted to end while were still ambulatory and going strong, Benioff says.
We love the show too much.
Preview:
Game of Thronesreturns to HBO on April 24.