The developer explains that due to the number of changes the update will introduce, a clean slate is best to "enhance your overall gameplay experience"
In particular, the skill tree and perks system might be enough incentive for some to start a new save file. As CDPR noted in a blog post, the idea for the redesign was "to have fewer, but way more impactful perks for players to choose from." While those on a continued save file will have a one-time opportunity to redistribute these attribute points, a clean slate might be easier, depending on the player's circumstances.
In particular, the skill tree and perks system might be enough incentive for some to start a new save file. As CDPR noted in a blog post, the idea for the redesign was "to have fewer, but way more impactful perks for players to choose from." While those on a continued save file will have a one-time opportunity to redistribute these attribute points, a clean slate might be easier, depending on the player's circumstances.
