Takashi Murakami

If you are not logged in, it will not hide the current public posts. ( Only one generation, but allows the future of the article published. ) 
公開記事を更新（予約投稿）した状態であっても、..訪問者が予約投稿前の記事を閲覧できるようになる

Fixed Future Posts

Plug-in ( Fixed Future Posts ) for the WordPress.

msudvarg

The ‘Future’ plugin allows posts with future scheduled dates to be integrated into a site. This can be useful, for example, with events that have associated dates in the future. Such future posts can, with this plugin, be displayed, both individually and in archive lists. This plugin also adds functionality to the built-in calendar widget. It adds a checkbox to include future posts in the calendar, and it allows the calendar to be configured to show posts from a single category.

Future

Integrates future-dated posts into your blog. Adds future posts and category selection to Wordpress's built-in calendar widget.

Fixed Future Posts vs Future