Very Simple Splash Page
Add a fully responsive image or video splash or landing page to your existing theme.
Plugin Tag: splash screen
AweSplash – Just Splash Page
A splash page for your WordPress site.
N360 | Splash Screen
A responsive fade-in-out splash screen and landing page for your existing theme.
Kento Splash Screen
Splash screen box for first time visit or new visitors
Splashscreen
Display a splash screen before allowing visitor to see blog.
W8ing
A basic waiting/landing page plugin for Wordpress