Hi Platonides, thanks for the questions.
We have received three very simple drafts of the layout last week, and as far as I remember, it's going to be very similar to the one we used last year (see http://commons.wikimedia.org/w/index.php?title=File:Wiki_Loves_Monuments_2011_calendar_(design_file).pdf).
We have brought up the subject of weeks being culture-dependant to the printing company (which will be also responsible for preparing the layout) together with other requirements (licencing and language-neutrality) that we gathered last year.
I guess we will be able to share a next version of the draft with the wider community as soon as we get it from the printing company -- there isn't anything special to comment in those three drafts we received, and I think it'd be better to wait and see how the design will evolve, and then to comment on it.
Thanks,