An excerpt from the article, 

"NBC cancelled Hannibal in 2015 after the show's critical success failed to to convert into equally strong ratings. That said, the series reportedly found a larger audience once all three seasons began streaming on Netflix. Mikkelsen confirmed in January 2021 that this streaming resurgence reignited ongoing discussions about renewing Hannibal for a belated fourth season. According to Mikkelsen, 'The talks have been revitalized... I don't think you'd find a member of the cast that is still alive that would say, 'No, Thanks.' We all enjoyed it tremendously, he said." 

You know what to do Fannibals, continue to share and sign this petition and pressure HBO, Netflix and other large streaming platforms to renew Hannibal! It's not out of the realm of possibility!