Should I be worried?
 

I got my car dyno tuned with a 93 octane tune.

My question: If I put on a 75 mm TB/Plenum and swap my BBK CAI for a JLT RAI, will I be safe still being on my 93 octane tune or should I just "return to stock" until I get it re-tuned. (wouldnt be more than a week from when I would re-tune it)

You should be fine! I would not worry with those mods.