I use this thread for the extension of my older wishlist for Pages.
Pages should have
background images for categories as for forums grid view
polls in Pages entries
text area for category descriptions (and not only one text field)
an option to show category descriptions only on category sites and not in categories overview.
widgets per category and not for all categories together (yes, there's an app for that)
the option to set multiple authors for one article
field for meta title on Pages database entries
snippet preview on Meta Tags at least in ACP
more schema tag options as described in this thread from @Gabriel Torres
in menu manager the option to include a single entry from a Pages database (an article for example). So many menu entries are "external links" but actually "things" in Pages.