Inactive account time

Thanks all for reading this. My son is thinking about returning to WOW. We believe he logged into WOW last close to a year ago. I wanted to send him a recruit a friend and get the new expansion for his x-mas present. If it’s been over a year I’ll do it right now. If it’s like a week-month from now we are willing to wait. We would like to maximize the benefits but we were struggling to find out when that was.

Thanks,
Fanum