I have seen this mentioned in some anime reporting. It sounds like an anime forum or a magazine, but strangely I can't find any information on it.
The wrap-around jacket band on the seventh volume of Sui Ishida's Tokyo Ghoul:re manga announced on Thursday that Ishida's original Tokyo Ghoul manga will get a live-action film. (source)
The wrap-around jacket band on the sixth compiled volume of Kohske's Gangsta. manga is announcing on Wednesday that an anime adaptation has been green-lit. (source)
The news broke to fans on the wrap-around jacket band of the most recent tankobon manga volume released today in Japan. (source)