Can hela become something else when she dies? We saw her get crossed big time, but seriously ive been waiting for marvel to bring back the red skull, that ending in TFA, is ambiguous kind of like him getting transported to another dimension
Red Skull's fate in TFA was deliberately ambiguous but if we do see him return I doubt that Marvel will force Weaving to reprise his role. He was very vocal about not wanting to return. But maybe that all changed in the subsequent years that the MCU became the juggernaut that it is today.
I never thought I'd live to see the day that Harrison Ford returned as Han Solo so anything is possible.