Eric Slivka, writing for MacRumors:
According to Kuo, Apple is aiming to introduce a new 10.5-inch iPad Pro model next year to go along with a 12.9-inch iPad Pro 2 and a “low-cost” 9.7-inch iPad model. Kuo makes no mention about the fate of the current 7.9-inch iPad mini, although many have assumed that model may be phased out as the recent 5.5-inch iPhone “Plus” models have helped lessen demand for Apple’s smallest tablet.
John Gruber thinks we’ll see a new aspect ratio for the iPad — because of how close the 9.7-inch size is to this rumored 10.5-inch device. But I’m not so sure. Apple currently sells the 11.6-inch MacBook Air alongside the 12-inch MacBook. Both of them feature the same aspect ratio — why would the iPad be any different?
Update: Apologies for the oversight, Ravi Gupta points out, on Twitter, that the 11.6-inch Air and the 12-inch MacBook do have different aspect ratios. Sounds like Gruber might be right after all.