According to a copy of the magazine issue that ANN obtained, "the 'new anime' in production that is being announced is not Hybrid Child." The magazine already announced a Hybrid Child anime project last July. While Ciel Trés Trés says that the new anime is "still secret," more details will be announced in the next issue of the magazine on March 30.
This sounds like the third season of Sekaiichi Hatsukoi? Am I hoping too much and I am biased?
Source: ANN