It isn't. It's something much more evil.
Eldritch Horror is a new game "inspired" by Arkham Horror, allowing Fantasy Flight to sell the two games side-by-side. Arkham Horror, that hardcore horror with its nine (count 'em!) expansions, will soon be joined by Eldritch Horror, a more accessible game of otherworldly apocalypses.
It only gets sadder from here. In the same update project founder Erik Chevalier states that, despite having quit his job for the game, will now do his best to seek employment and steadily repay the project's 1,246 backers. Not that this was enough to stop many of the backers from creating a bubbling lake of fury and vitriol in the comments.