Great post! I struggle with this too.
I've opened any Rebels/TFA related figures and displayed them, but any Rogue One items that I've snapped up I've simply left packaged in a corner. I won't open them or really overly inspect them until after the movie is released. Like you, I don't want to think too hard about the figures and thus the plot of the movie as I would like as much as possible to be surprised by as many story elements as possible.
Smart. I don't really have the will power or space for that, I wanted to get them opened up and worked into the shelves as quick as possible... Sunday's project was compressing the space all the ROTS figures were taking up to make a new gap between that and ANH. I've probably got room for 40 or 50 figures at most, so now I'm hoping they don't make quite as many figures for this as they did for TFA.