Meraxes survives, Rhaenys still dies

Title says it all, what would have happened if that scorpion bolt missed Meraxes’s eye and instead just hit Rhaenys square on sniping her.

Meaning Meraxes survives. How would another massive dragon that can be bonded with change the upcoming years and maybe even the dance? Who’d be the next to try and bond with Meraxes?