I just wanna say:
A redux is a remake.
So is a reboot.
There is no difference.
If they had to get the rights to the previous film, if the story and characters are basically the same, it's a remake. The other terms are just marketing. Don't be fooled into thinking they are any different. Some may be more well done than others, but they are all remakes. Just like Midol is the same exact drug as Advil is the exact same drug as generic Ibuprophen - a reboot is a redux is a remake.
A Rebound, on the other hand, well, that's a different thing altogether.