I wonder what the "more" could be? I did make a suggestion a long time ago that they do something clever like make a holiday mode, where the LED would cycle through red/white/blue on the 4th of July (requires a country code to be set, as well as date/time), red/green at Christmas, etc. as something like an easter egg. That would require waiting... beyond the spec release on Tuesday.
I also thought it could be customized colors, by setting RGB values in 8-bit numbers (0-255 for each of red/green/blue), but that goes against ProVape's KISS design style.
It could be an always-on LED, but that would eat battery life and annoy most people, IMHO.
Maybe it refers to the +/- buttons lighting up, perhaps even with different colors than the fire button.
Maybe they added a timeout on the LED, where it stays on for X seconds after firing.
Maybe it's brightness control of the LED?
I'm not sure what else "more" could be... Guess I will have to wait and see.