Also the lore says this, and the game says this. It goes like that “thinking like human behind Blackwall is a capital punishment”.
Endings were just retcon a little bit at the end to not be bitter in the first taste. But by the end it’s all the same.
What was left are only plot holes like
Tarot cards
Panam line
Some extremely far fetched connections between Nomads and Biotechnica
Living behind the Blackwall and inside Mikoshi.
Yet games doesn’t say a word about how Biotechnica can cure your condition. It’s only that they developed a prototype treatment for Multiple Sclerosis, disease that last time I checked is about inflammation in the brain not about DNA thing.
It also doesn’t say a single word about dealings with Biotechnica.
Like it never says a word why now we should care about esotericism.
However, the overall lore indicates that there actually are several technical possibilities to approach Vs problem.
In the game, a company is presented on the news who is able to cure severed spinal cords using nanobots.
The game lore backed that there are gene treatments and chance therapy is also a thing. Biotechnica is the only company who mastered cloning technology. Although cloning is illegal.
These options are however never considered in the game.
The question is, if it was just an oversight or on purpose.
So in theory, there are several ways to safe V either by engram transfer to a clone or by using therapies existing in the world's lore.
The fact that the source of the problem is only halfway explained by alt and arasaka does not help. This is a narrative oversight.
Is there a possibility to cure V's condition from the endings onward? Yes indeed.
Will it happen? Only, if the writers decide to dewit.
Is it likely? No fucking clue.
If the endings stand the way there is and will not be altered or expanded on, the devs should either add an additional ending that respects player agency or simply clarify V's conditions past the game using word of God and the credit Videos.
Would the last options be good? Oh hell no! Bit they would be good enough to at least increase replayability.
Ideally, this was just a tease and the next chapters are already in the making but until then, V is dead meat that just did not dro yet.