with the troll species living on in the ending, will there be a new fuchsia ruler? and.. would it be somehow possible for all the deceased trolls who never made it to earth c to be reincarnated somehow in a new self? silly thought but i always imagined that happening ^^

Likely no Fuchsia Rulers by birthright, it’s more likely Troll Leaders will be chosen from now on. As for reincarnation, who knows! Technically you could clone all of the dead Trolls.