mobile

Hi, I have a question. A had a rooted Z1. I had to give it to service and now it is unrooted. Obviously. I am on 14.4.A.0.157 now. My question is whether I should wait for official Lollipop update? Will I be able to root then? Or should I root now? I won't receive the official update then most probably. I just would like to add I just want root, not custom ROM now. Thanks for advice.