Eurogamer has written an interesting article on The Legend of Zelda: Breath of the Wild and the information they have heard from their sources regarding a release date for each region. It would seem that Nintendo has finalised a date for North America and Japan, but Europe is still currently up in the air
“So, what changed? Multiple sources close to Nintendo have now told Eurogamer that, at the end of last year, Japan finalised its plans and had a change of heart: Switch needed the strongest possible launch lineup. In short, Zelda will release in March in North America and Japan. Zelda’s launch timing in Europe is still unclear.
Nintendo of Europe, which will be impacted most by this change, had previously pushed for as long a period of testing and localisation as could be allowed and had been working to the proposed schedule of a global launch after the Switch itself.
One source tells Eurogamer that Japan had always wanted the game to launch in March, and had been uncomfortable waiting until later. Another source says the decision to move ahead with March regardless of Europe was only finalised by committee at the end of last year.”