Why do Zelda Console games take 5 years to develop.... ?

[Platina]

Mythmaker1 said:

Because each Zelda is built, more or less, from scratch. New assets, new art-style, new controls, new engines, and so on. That takes a lot of time.

Many sequels these days are built using similar engines or recycled assets in order to save costs and time.

Basically this.

This is also their first time making a 'real' open world game so there is a lot of things they need to test out to see if it works well