2011 Holiday Plan

I wanna go home for Raya next year coz by August next year, I'm done with my Major Review. But now I'm not so sure whether I CAN go home coz if all goes well, Insya-Allah, I need another break just a few months before. So I dont think my supervisor will be very happy if he hears that I wanna request leave for more than 4 weeks. Hmmm...what to do???