The PC Engine / TurboGraphx 16 FPGA core originally developed by @Torlus has been ported to the MiSTer board (a faster MiST FPGA board) thanks to GreyRogue and Sorgelig.
Here is the link: https://github.com/MiSTer-devel/TurboGrafx16_MiSTer
Thanks to ElectronAsh to report the news.