Reflections IV, taking in the style of Reflections III, will only have 50 premium cards, varying from all five current movies. There will also be 200 foils, from all previous expansions.
Being that it's too hard for me to make foils, unless anyone finds a cheap and/or simple way, I will not actually be making them. Obviously, those cards are already made, and you will already know their image.
However, there will be a list of foils that I would have made in this set, if I were to make it. And of course, the 50 premium cards will be viewable. Reflections IV will be the first expansion I create once I am done with all three Episode II expansions completely.