Not sure if you were referring to the specific news in this post or in general - but for people who aren't aware he did write his own game with it's own system
Phoenix Dawn Command
Haven't had a chance to play it, but I've been intrigued by the concept - PCs are people that have have died are returned to life - they can increase in power after additional deaths, but know they can only return a fixed number of times so there's tension of whether now is a time worth sacrificing. Also interesting to see as an alternative card based RPG.