According to Comic Natalie, the June issue of Gessan, released on May 12, has announced an additional reprint to be released on May 23. The reprint was caused primarily by the first chapter of “MIX”, the newest manga serialization by Mitsuru Adachi. Shogakukan made the bold decision to do the reprint, a rarity for any manga magazine as well as a first for Gessan, in response to the nation-wide depletion of the first stock of the monthly magazine before the first week after its release date.
MIX is the sequel to Touch, taking place 26 years later, about a different pair of brothers involved in the baseball team at the same Meisei Middle School.
Source: Yaraon (Japanese), Comic Natalie (Japanese)