According to various reports, Apple is hard at work revamping iOS, and that these new visual tweaks will be very noticeable when compared to the current iOS 6.
iOS 7 is reportedly going to make its appearance alongside the next-gen iPhone, but the bad news is development of the new iOS is running behind schedule—to the extent that engineers from the OS X department had to be pulled.
(Jonathan "Jony" Ive is one of the leading figures behind Apple's product designs.)
There has been a lot of Apple rumors floating around lately, and the talks are not limited to just iOS. Talks of products like the iWatch and a low-end iPhone are all on the table, but as always Apple have remained tight-lipped about what’s going on in the lab.
Regardless of whatever Apple products are coming our way; expect significant UI changes in iOS 7 as some seem to think that there were no significant changes made from iOS 5 to iOS 6.