I have begun working on porting nzp to PC and from there android, mac, Linux etc. Progress is going well but I don't have any dates yet to give.
After I have laid out a good solid framework where to work with, I'll also update the PSP version. I'll try to make it so the code is shared as much as possible between the engines. But I don't have a working PSP so I can't verify it actually works on a real PSP.
PC and android versions will have proper mp support, PSP won't.
It will be based on NZ:P demo with also unofficial patch stuff potentially added in.
You can follow progress in moddb and discord.
I have also set up a public github repository where you can get the latest WIP builds as the progress goes, if you have coding experience you may also set up pull requests which I can take a look at and report issues.
This will be just a brief note, more extensive update post later.