ThePrincess_Twilight

I doubt so, Starlight doesn't represent any Element Of Harmony.

In my opinion, I think she'd never do that. I don't even think the Mane 6 would die, because the Pillars didn't, and they're like the next generation of the pillars. I don't think Twilight could ever feel she'd need to leave rule, and even if the rest of the Mane 6 quit, she shows all of the elements in her, so she'd be able to fight villains alone. Plus, she has Spike, who'd support her through everything.

All Alicorns are immortal, they always have and always will be.