I just saw an official poster of it on facebook, but Heritier hasn't posted it yet on social media. Announcing an event 2 or 3 months for the show isn't a problem. When Congolese artists started to do Olympia's and Zenith, they were also making the announcement 2 or 3 months before it until the concert-ban came. Werrason himself also promoted Palais des Sports for just 3 months. It were only for Bercy (except Werrason who spent just 3 months) that they were making an official announcement 6 months prior to the event (JB Mpiana & Papa Wemba) and Koffi 9 months after announcing the official date (in reality 1 year, since that he changed the concert-date twice). Giving concert-date of 1 year before, became a thing when Fally started to do it for U-Arena and Stade des Martyrs. He was first critized for it and people that don't like him, saying that it was a sign that he was not that at level yet, since that artists in the past would announce a show at Stade des Martyrs, two weeks or three weeks prior to the event and for Europe-shows 2 or 3 months before. But when he succeed, regular artists and also gospel artist all started doing the same, by announcing shows 1 year before. In Heritier's case of announcing an event at Palais des Sports, 3 months prior to it, he needs strong promo or or release a hit-song/generique otherwise could be difficult for him to fill it. I wonder if he will perform in full capacity or split the hall.
Some people claim that Gerard Drouot (who produced him at U-Arena), wasn't satisfied about the two French-tours of last year. The tour was apparently meant to measure Fally's popularity in France and also a indirect way to promote Stade de France.