Buy iPad mini now?

Hi all!

I want to buy an iPad mini for my girlfriend and wanted to know what you think: will Apple refresh the iPad mini in September or in March. In my opinion an update in March is unlikely but I´m not sure. She doesn´t need the iPad so we could wait 1-2 month but I don´t want to wait till September. She also has no need for a Retina Display. I use an iPad 2 and I´m pretty happy with the display and the performance....

Another question for me is if a new Retina iPad mini will have an A5x or an A6x chip. If it´s only an A5x chip it would be much easier to stick with the current model.

What do you think?