It turns out Marvel's new Sentry isn't actually "the Sentry" at all

gamesradar.com:

Marvel Comics has finally crowned the successor to the Sentry, one of the publisher's most controversial and embattled superheroes. But in a somewhat surprising twist, the new Sentry isn't actually a new "Sentry" at all.

That said, the new heir to Robert Reynolds' "power of million exploding suns" brings some interesting representation to the Marvel Universe that I'm personally excited to see.

Sentry #4 by writer Jason Loo, artist Luigi Zagaria, colorist Arthur Hesli, and letterer Joe Caramagna finishes the saga of the new Sentry, with the out-of-control Sentry inheritor Ryan Topper facing off with fellow recipient of Sentry's powers Mallory Gibbs, a young woman with cerebral palsy who has struggled to fully control her new abilities.

As the pair clash, each using the powers of the original Sentry, Bob Reynolds, which were distributed among several people following his death, Mallory sees the spirits of all the other heirs of the Sentry's powers, each of whom was killed by Ryan.

Tapping into her own abilities, she manages to temporarily resurrect the other Sentries, all of whom manage to beat Ryan down and absorb his powers.

With Ryan defeated, the spirits of the dead Sentries disappear, leaving Mallory as the sole heir to the Sentry's vaunted "power of a million exploding suns." She surrenders herself to Misty Knight of New York City's soon to be defunct Aberrant Crimes Division for training in using her abilities.

And though Mallory Gibbs inherits the Sentry's powers and even his legacy, in her own version of Sentry's blue and yellow costume, she tells Misty that she believes that Robert Reynolds' dark side, the Void, has left his superhero identity tainted. Instead, she announces she'll take up her own superhero name: Solarus, presumably a reference to the aforementioned "power of a million exploding suns."

This also leaves Ryan Topper powerless in custody, though his ultimate fate isn't shown. Given his own connection to the Sentry combined with his own twisted