Marvel Characters, Inc in Burbank continue to add, or extend trademark registrations. We listed a bunch from earlier in the month.
They have now added Thunderbolts, Tales Of Suspense, Nova, Heroes For Hire, Hawkeye, Eternals, Drax The Destroyer, Daredevil, Black Widow and Defenders.
Just trademarks usually indicate an intention to publish solo books under those titles, or to consolidate the trademarks for books currently or recently published. There is a notable presence of digital comics in the trademarks as well.
Drax solo title anyone? And the return of the Eternals?