In the interview I linked to, he said his involvement in the Slam Dunk movie wasn’t substantial.As it turns out, the production on The First Slam Dunk movie was greenlit back in 2014, after years of development of a convincing CG build since 2009. Now that the film is out, unless Inoue will dive on another anime work, I think it's more than likely that he'll be back on Real and/or Vagabond. Him mentioning a desire to return to Vagabond again makes me think that he's clearly pondering about it. At least, now it's clearer for me the reason why Vagabond went into hiatus and why Real was so slow in releasing. Let's hope for them return to publication soon!