I'm already a 4th combined honours English and Theatre and Film and planning to get a minor in Religious Studies. I realized when looking at my degree audit that with a few more courses I could get a BA in religious Studies.Now would I be able to put off graduation for a year and come back to do a few more courses in Religious Studies to get a BA, or can i not do that.

I'm pretty sure you can, but i would talk to an academic advisor about it.