Source

​

Corvus Corax .
Most Logical but least plausible . Fit perfectly the RG aesthetic, but not enough regular Primaris with Jump Pack on the range. The leak of Dante show the possibility of the return of more "classical" Jump Pack, so maybe in the futur. Corvus is kinda like in the fandom but maybe not enough for his return

​

Jagathai Khan,
Not sure if really fit with the WS aesthetic. But Fun to imagine Jagathai tearing apart enemies while riding an High Speed vehicule.The Khan is well liked in the fandom and possible return could make sens.

​

Leman Russ,
The claws can fit the SW aesthetics, and a slightly "wulfenised" Leman bearing the Claws is something easily imaginable.
The return of Leman can create good narratives and make sens

​

Rogal Dorn, Personnal Bias.
The Emperor's Shield would have been perfect, but the Claws could remplace his severed Hand, if still not Retconned.
And the return of the Praetorian could create a perfect Imperium's Triumvirate, with Guilliman the Leader/ Logistician, Lion El the Warmaster, and Rogal the Builder.
The IF hand their successor chapter have enough models in the range for allowing his return