The fact that you have interviews, let alone an acceptance at this point, means your application is strong. The 8 obviously isn't holding you back.
However, none of us can speculate about whether or not you'll get more interviews; the process is so seemingly random (from our perspective with imperfect information) that you might as well roll dice to guess at whether you'll get more interviews or not.
I am very happy with the acceptance, dont get me wrong. It is just that it is not my top choice. I would go there in a heart beat, but i would just choose to back my debt in my own mannor.
My sister had the EXACT same MCAT score breakdown, well she got a P in writing, and she got two acceptances. Granted, they were in Jan and July... Just don't get too bogged down, and be glad of your interviews so far, and put your best effort into them! Good luck!