Yes. The game is in a much stronger state than launch, especially with current patches and Phantom Liberty-era systems.
Not required for base campaign completion, but highly recommended for story and systems value.
Gameplay is primarily first-person, with some third-person presentation moments.
Yes. Different perk paths and cyberware choices can substantially change combat flow and approach.
CD Projekt has confirmed sequel development plans, but no final release window yet.
Both. It combines RPG narrative choices with shooter/stealth/melee build execution.
All