SDM36

A Coming Soon plugin which gives you extensive control over what is displayed. 
Includes FontAwesome social media icons and code editor for custom css.
Logged in visitors have access to the site as usual whilst visitors to the site who are not logged in will see the coming soon page.
Display the site title and header image, a featured image, title and content from a selected page or a combination of the two.
Page content accepts shortcodes allowing users to fully customise their coming soon page.
Fullscreen background images should be 1920px x 1080px and web optimised to reduce loading times.
Includes countdown timer option, leave blank to omit.
All Options:
<ol>
<li>Coming Soon Page Active</li>
<li>Choose the content page</li>
<li>Enable Social Icons</li>
<li>Pick a Background colour</li>
<li>Pick a Text colour</li>
<li>Pick a Box colour</li>
<li>Box Opacity:</li>
<li>Border Shadow for Box</li>
<li>Countdown Timer Date</li>
<li>Choose the logo</li>
<li>Choose the title</li>
<li>Choose the content</li>
<li>Choose the background</li>
<li>Text alignment</li>
<li>Custom CSS styles</li>
</ol>
<h3>Notes:</h3>
The plugin will only display the site title and or logo until a content page is chosen.

NNM Coming Soon Page

A Coming Soon plugin which gives you extensive control over what is displayed.

Vast HTML

A great plugin for any great WordPress powered site. 
Its very often that you update your site, or decide to try new themes and make sure everything is 
ok before you want your visitors to view the site. Sometimes you want to stop them before the view your 
site while you are completing updates or even just getting the site started. This plugin will 
keep away the users you don?t want and do it with a great look that will get the visitors attention. 
This is a WordPress plugin on the file available on Theme Forest. You will need to purchase this plugin for it to work correcly. 
Plugin also has a updater to let you know when a new version is available.
Withoutreligion.com has very kindly offered to set up a full time demo of the site. 
http://withoutreligion.com/vinta_demo/

Vinta Construction

adds a splash screen to your site for construction or maintenance reasons. Has a configurable countdown.

NNM Coming Soon Page vs Vinta Construction