Good question, with the now key differences between the iPad Mini, iPad Air 2, iPad Pro and the freakin huge iPad Pro, Apple hasn't really defined the direction they are going to segregate the models. Will it still be by screen size or by a moniker whether it is Air or Pro.

They will probably still continue producing the iPad Air 2 and keep that as the budget option whilst maintaining the iPad Mini 4. Doesn't make sense to redesign or upgrade it again this year especially since Apple has had two appalling quarters.

Today's rumourmill says that they expect Apple to launch a 10.5" iPad next year and a special iPad with OLED in 2018.