I have already preordered them because I had a discount and after all they are not so expensive (11 euros each).
They are the collection in cronological order of the smurfs comics by Peyo, so if you already have them in their previous editions, these will be doubles.
The 1st volume will be available in mid july and the 2nd in mid november, with 6 stories each.
I already have the previous editions in French, Italian and English but I ordered them the same, as I suggest you to do.