I can most likely add a freecam (I planned to add one eventually anyway) but replay is extremely complicated and won't be added for a while; there are other complex things that I need to focus my attention on first. This is a very large and complex game and takes a while to get much done in my limited freetime outside of work, life, and working on my other game.
That said, I do have several wonderful teammates on this project who may be able to help implementing such a system. PJSF wouldn't be where it is without them, but we're still limited in what we can do and how fast we can do it. As always, I hope you'll stay turned for future developments and THANKS from all of us for playing!