According to Issui Okawa's Twitter, it was announced that his science fiction novel Michibiki no Hoshi will be getting an anime adaptation. The second sentence on the image indicating "screen adaptation to come Fall 2018" is not clear if it talks about the anime adaptation or if there is another adaptation coming. Further details regarding the project will be announced at a later date.

Michibiki no Hoshi is Issui Okawa's science fiction novel published under Kadokawa Haruki Corporation's Haruki Bunko label. Four volumes total have released.

Synopsis
People on the Earth traveled through the galaxy and had a chance to contact aliens. They realized that other races are late at civilization, so they have established the Ministry of Supporting Outside Civilization. They have sent officers titled "Outside Civilization Observation Officers" and started secretly supporting aliens. However, because a young officer named Tsukasa Tsujimoto and three beautiful androids discovered and mistakenly made contact with a creature called "Suwarisu," it caused the galaxy to be in turbulence later on...

Official site: http://www.kadokawaharuki.co.jp/michibiki/

Source: Issui Okawa's Twitter