Heathers tickets

Do you guys think there'll still be available tickets around December or January?

I'll be working in BPO and by January I'll still be in probationary, so I dont know if I can take leaves yet. I dont know about days off yet either so I'm worried that I might buy a ticket with a date I'm not available. And I'm from Cebu.

I really want to watch Heathers. This will be my first live musical.