PS Vita port of the first Danganronpa game, Danganronpa - Trigger Happy Havoc will be released on Steam 2 days later, 18 February 2016. It's standard price is rumoured to be 29.99 (Price is still not shown on Steam Store page, so I'm not sure.) Also, Japanese UI and script option is not available at the moment, but Japanese voice acting is available. Spike Chunsoft stated that the Danganronpa ports are just the beginning, we might see other Spike Chunsoft ports on Steam in the future.
That's awesome, for a while now I wanted to play the games. Thanks for the news!