But when will the final chapter really be released and what can we expect? Related: Best streaming servicesHBOWhen will House of the Dragon season 4 be released? This would mean that production on the final season of House of the Dragon could begin as soon as in spring 2027, putting a 2028 premiere firmly on the cards. But by the end of the series, Aegon was ready to challenge her claim to the Iron Throne. Related: Best LEGO setsHBOWhat can we expect from season 4 of House of the Dragon?