Larger Screens
I would really like to see an iPhone with a larger screen, say 4.7" or 5", but would want the current resolution to stay the same. This would be very easy for Apple and Developers, because it would not require any changes in Software. The reason I want this is because as people get older, their eyesight deteriorates, and now in my mid 50's I need to use glasses to use my phone. If the on screen experience was just a little bit larger I could use it without glasses. I am sure that there are a lot of people that have the same problem. With the current generation of Retina Screens I can not see the lowered DPI being a problem either.
As for a larger iPad, the perfect device for me (to use in the house) would be the same size as a normal magazine when opened for reading (about 19" diagonal), which would give you a really great reading experience for Newspapers, Magazines and Web Pages. It would have to be thin and as light as possible, but I think that this would be the perfect sized device to replace all media currently delivered on paper.
Hope that Someone from Apple will see this and pass my comments along.
I currently have over 15 Apple products, iMacs, MBP Retina, various iPhones and iPads, so for my personal needs, that is what I would like to see.