Actually Phyla-Vell was an avatar of
Oblivion, not
Death, under the name of Martyr. Then killed releasing Thanos from his cocoon in
Guardians#24. Get your facts staright sir. Besides, on the subject of Nova(Richard Rider) and Star-Lord being dead, the circumtances of their last appearance in the
THANOS IMPERATVE finale leaves the door open for a return. Black Bolt I believe made a return recently in
FF. Emperor Vulcan, the Big Bad of the hellacool
WAR OF KINGS, is still MIA. But a lot of X-fans seem to like it that way with the third Summers Brother. Although I wouldn't be opposed to a return. But with the the rather sudden cancellation of
NOVA and
GUARDIANS OF THE GALAXY, there were still some storylines left hanging. One, was at the end of
NOVA#25, a member of the Nova Corp, a Shi'Ar named Malic Tarcel, was captured and tortured by Emperor Vulcan and the Imperial Guard. After they had their jollies with reblous Shi'Ar member, they left him hanging. But then coming to his rescue was Garthan Saal, the Xandarian who at one time went bugnuts from possessing the power of the entire Nova Corps under the nom de' gure,
SUPER NOVA(
http://marvunapp.com/Appendix3/novasaal.htm). Who had thought to me his end with Nova Corps in the
ANNIHILATION WAVE , now back as Super-Nova, coming to free Tarcel. As far as I know, that plotline is still hanging. Also, in the course of
War of Kings, Darkhawk, or at least his body, was part of an order that kept things status quo in the Shi'Ar Empire known as
Fraternity of Raptors. And in the course of the War, Darkhawk's body was usurped by a
loyal member of the Fraternity, and used to assassinate Princess Lilandra. Thus putting the blame on Chris Powell/Darkhawk when he regained control, but Nova got things straightened out later. But the Franternity still has its hooks in the Shi'Ar Empire both covertly, using illusion generating technology one member has Emperor Kal'lark/Gladiator ear in the disguise of a close advisor to him. And is also spreading some discention among the ranks of Shi'Ar Senate towards Earth. Other members of the Fraternity are also members of the Shi'Ar Imperial Guard quite publically as well.