I feel that the workings of XMB is not so important. It can be mimicked by swiping and pointing easily. It's the minimalist art style that catches the eyes first, followed by the grouping of items.
They only need to keep the art style and icons. Grouping is more flexible with folders and a table/2D presentation instead of a list. Swiping desktops and (background) apps can be added without disturbing fullscreen presentation.
The Vita OS has similar set up.
However this is only a utility view. Other views such as the community, activities (Calendar of events ?), geolocation (Globe), etc. may be more interesting. Since these views are missing from XMB (or they are standalone apps), Sony can pretty much do whatever they want.
They can also call the new experience XMB 2.0. It's not really a problem. They can always think of new words for XMB.
They only need to keep the art style and icons. Grouping is more flexible with folders and a table/2D presentation instead of a list. Swiping desktops and (background) apps can be added without disturbing fullscreen presentation.
The Vita OS has similar set up.
However this is only a utility view. Other views such as the community, activities (Calendar of events ?), geolocation (Globe), etc. may be more interesting. Since these views are missing from XMB (or they are standalone apps), Sony can pretty much do whatever they want.
They can also call the new experience XMB 2.0. It's not really a problem. They can always think of new words for XMB.