IDW announced that they would be doing a comic of Black Dynamite at Wonder Con earlier this year. No creative team was announced, but that is mainly the norm with licensed properties
Later it was announced the creative team of Jamal Igle (Supergirl, Firestorm) and Sal Buscema (Captain America, The Incredible Hulk) would be doing the art. Now at Comic-Con IDW EIC Chris Ryall confirmed that Igle and Buscema are no longer on the book.
If rumor is to be believed, this was a last minute decision by the licensor who changed their mind about letting the two of them do the art for their IP. This is long after the point when those decisions should be made. You make the choice before the book is announced, since this means that IDW has to make Black Dynamite #1 returnable to retailers due to the change.
So now it is slim odds the book will make the original ship date. Since this is a niche book based off a Adult Swim animated Blaxploitation parody film about a tough as nails black ex-CIA agent, adding any delays will certainly not help your local shop decide to carry it.