@Wene83 it is much more difficult than it. A cache system used as load balancer too, is still in production. The software used for it doesn't support https so we need to remove this layer and substitute it with nginx microcaching and a different load balancer.
This means to rewrite and test many files and servers.
In addition the arduino.cc page is composed using data from blog.arduino.cc (via RPC API) and WordPress does not support (crazy thing) both http and https protocol at the same time. It also writes full URL (with scheme included) in the DB.
Because of that we need to migrate the blog as first, than the website.
There are other smaller issues I will not explain here but even if seems simple I can assure you is not.
The migration started one month ago and involved in addition moving the blog to another server (it was done one month ago with no service interruption).
Other servers and dns need to be migrated. Add to this the fact that lately we had dns issue and you can see why we are so careful before migrating everything.
Every new feature is designed with https support in mind (contribution page data, arduino day website).
More news on this forum and blog.