Casually checking sites and today Ghostlight announced that Way of the Samurai 4 is coming to Steam this year.
With the help of Aksys they are gonna bring the game but WOTS4 is not the only game that Aksys is bringing.
The other game is the Vita exclusive Mind Zero.
At the moment Mind Zero is being greenlit so if you want to support Japanese RPGs on steam then go and say yes!
Mind Zero Steam Page: http://steamcommunity.com/sharedfiles/filedetails/?id=309930148
Way Of the Samurai 4 Ghostlight Announcment : http://blog.ghostlight.uk.com/post/way-of-the-samurai-4-is-coming-to-pc-on-steam