Yes, given the evidence, there was probably no doubt in your mind that the Zelda manga would be translated, but it lacked one very important thing: official confirmation. Until now.
Viz Media announced at BookExpo America, in Los Angeles, that they would be releasing the ”The Legend of Zelda: Ocarina of Time” manga series in English. We finally know that the manga series, of the many Zelda manga adaptations by Akira Himekawa, will be the one based on Ocarina of Time, as expected. Viz Media have previously stated that they will release further Zelda manga adaptations if sales figures are good.
Also on the manga front, Akira Himekawa (actually a pen name for two people) announced on their blog that their next project will be an adaptation of Phantom Hourglass. Which seems a bit odd, considering they never adapted The Wind Waker, of which PH is a direct sequel. But it will be a long time before we see that one in English, so let’s save the confusion for then!