According to anime news network there may be some hope for a manga release of love plus;

The Japanese publisher Kodansha has announced that it will launch five new manga series in five different magazines in connection with an unnamed “super-big title” this spring. The advertisement for the five new titles includes silhouettes of the female characters from Loveplus, Konami’s “virtual girlfriend” simulator for the Nintendo DS game console.

The five tie-in manga will launch in Kodansha’s Monthly Shonen Rival on April 3, Bessatsu Shonen Magazine on April 9, Monthly Young Magazine on April 14, Magazine E-no on April 20, and good! Afternoon on May 7. More details about the special joint project will be provided in Monthly Shonen Rival on March 4.

I can see why they would create a manga, the game has sold over 180,000 copies and has become well known throughout the otaku community.