nah, I think its based on UK; It's an Island, so it can't be San Marino ;)

Indeed.

So... in the end, do we know anything about Marlon's origin ?

About the Wiki being outdated... yeah, it's quite a fact, yeah. Do you think we should create a topic where we inventory every post that needs to be change/update (if it doesn't already exist one), to get a view of the situation, and then give a certain number of articles to each person willing to help update them ? I know I definitely don't know as much as, for example you, Servant of Evillious, but I'm quite willing to help.

As I understand it,  the Fanbook mentions it was inspired by Great Britain and the British Empire, which we already have mentioned on it's page although the format still needs to be unified to match the quality and format of pages like Lucifenia. 

As for this wiki being outdated: yes, it is although not as much as the Vocaloid wiki's Evillious page and its relating pages, which is what Adept and I are referring to. I myself know very little and am relatively new to this series and the wiki. All help is appreciated and I encourage anyone willing to help to do so.

What you are saying already exists in the form of my projects list which has already been utilized for several large projects including the creation of the Apocalypse and End of the Four page as well as many small edits and page creations in the past month or two. I encourage any and all users, anonymous or not, to help out with the projects listed here.