I suppose I'll be hugely disappointed if the most annoying shortcomings of OSX aren't addressed.
It would be silly if whole QuickTime interface was redesigned but there was still no native "always on top" option - a simple feature Apple is asked every time they roll out new QT version. And every time they forget.
It would be silly if they focused on icon sizes in Finder but still didn't add simple "breadcrumb" to indicate where exactly user is when the folder is opened in list view. Or if you used search from finder bar just to find out results of searches still only feature "Name", "Kind" and "Last Opened" sorting, instead of allowing sort by "size", "created" or "modified" flags.
It would be silly to find out that OSX is now fully 64bit but still leaves rubbish files like .DS_Store all over local and network folders and changing modification dates of folders when you only view them without making any changes...