Sorry for the confusion. What I meant was...
In Pokemon Gold and Silver, you start off in New Bark Town in Johto. You go through a lot of events, getting 8 gym badges and even beating the Elite 4 before getting to Kanto. Afterwards there are few events in Kanto that are really comparable to Johto since Kanto is technically a post-story mode region. You can still catch all sorts of new Pokemon and all that jazz but for the most part it's a lot leaner than the Kanto that Blue/Red offered.
So, in essence, Braillemon is the reverse of this. A lot of the fat from Gold and Silver will be trimmed because it is effectively a post game mode, and while it won't be completely barren, it won't be an exact copy of what G/S/C has to offer either. However I will promise that I still intend on having many of the events from Gold and Silver in there, as well as some new ones.
In regards to a dark gym, why not have a custom character with a dark team instead? Besides of course that one Elite 4 member from Johto who has dark types. Its just that 17 badges is a pretty ugly number, lol. But yeah, Dark is one of my favourite types and it goes perfectly with the theme of blindness, pun fully intended, so why not throw in another character? Lol. Maybe this will be Kyle's replacement.
Part of the reason why I'm iffy about including the Sevii islands is because a lot of the reason why they exist is because it was just easier to put that in instead of Johto. For example, the Ruins of Alph, which are in Johto, are replaced by a different puzzle on the Sevii Islands in order to collect the Unowns.
Regarding inaccessible puzzles, I tend to redesign them (similar to what I just did with the Rocket Hideout) so that they're more accessible. Ice Path will definitely be redone, as with the puzzles in Ruins of Alph. Maybe throw in some Braille since it is Unown after all!
Edit: The video is just showing the current state of the current release. It was made to raise awareness to the project in the sighted community. My last preview video was back from the days of like... 0.0.0.7 or something.