Even if I think that "V's goose is cooked", if CDPR add a way for V to survive, I will be happy anyway

(in short, I prefer "more content", whatever this content could be...)
I believe that both Alt and Arasaka may be unreliable narrators and lie to V about six months. Both of them want to keep V, in one way or another.
That said, i doubt CDPR will ever fullfil their past promises and restore all content. Like reasonable reputation system among gangs, affecting the endings. Like, if you have high enough street cred and good relationships with 1-2 gangs, you can call them to assist you in final battle, instead of nomads or helping them (possibly saving their named characters, like Saul).
Cyberpsychosis, Zen master and Tarot quest chains, affecting the endings.
Interlude with Meredith Stout, unlocking the option to peacefuly withdraw Militec forces from excavation site in nomad ending.
Humanity attribute, declining with each implant V installs and affecting the ending choice - if V has more implants than Robocop, V will risk cyberpsychosis (unless V found a cure from Cyberpsychosis quest line) or will just decide to go with Alt, because V became more machine, than man, and eager to leave rotting meatbag and enter the digital world.