It looks like Aerosoft will soon be releasing Helgoland for Aerofly. (soon meaning.....someday in the future or a different day if they so choose, unless it is later...or sooner, or perhaps after that if that's what they decide)
The screen shots on their forum look fantastic, especially for such a small little island. It looks like it will be a lot of fun!
Link below is for 'Helgoland for Aerofly FS2 (Forum.aerosoft.com)
Just incase the link above does not work...