The musician is doing the final level track, which will be epic. He's been working on it for 4 months now :) (mainly because I asked to change the music parts, many many times, as I want this track to be at least as great as the other ones).
This track will play in the final level, and in the second phase of the battle against the Shadow Lord.
I am doing now bug fixes and polish, balances, integration of the latest arts etc....
For sure by the end of 2019 it will be finished (PC version).
I think mid 2020 will be where this game will be out for the PC.
PS: If you played Shinobi arcade, there was a bug (or it was on purpose by Sega, no one knows) in mission 3 level 1, that if you continously bounces for some time on the gunman, or rocket man it will disable the ranged fire for all enemies, I did some things like this in Shadow Gangs, not the same pattern, and not the same outcome, but there is a trigger for a gameplay changing effect in one level.
I added things also in all levels, if you perform a certain "thing", things will happen :)
I am actually still doing it now, level by level.