When translations are complete
I think it is time to discuss how exactly we are going to integrate the translations into the website.
What I propose for now is to stick to static HTML. There are too few changes to the website to use a CMS right away, in my opinion.
I suggest to use the following structure (I take the Spanish translation of the Windows page, "es", as an example)
English (original website):
redirect there: en.getgnulinux.org/windows and getgnulinux.org/en/windows