I think it is better to have more fields, even if we don't use all of them at the moment. some of the original list are very unlikely to be used in the future (like release date) and one field (genre) got deleted because for genre we will use the category information instead. but I personally tend to use "key words" now in the body of the pages and not in the infobox as a replacement for genre. it is possible that the english infobox might change a little in the future... for the purtuguese I would say go with the third version of your xls. but drop genre and released.
it's not only about me going on - there are already 6 languages being worked, so it would be better if things would be coherent, I guess. I've added the 6 new fiels to the list in http://wiki.puredata.info/en/Wiki_administrator_how-to, is it now better?
Joao