Suppose that a systematic review on a topic X was published some (3-8) years ago by someone else, and it is currently still a useful source for what has been made before it was published. However, more recent works were also published later.
Generally, how can I decide whether it is a good idea to work on a newer systematic review for publication, taking into account that the newer review could be (somewhat) similar in methodology and would be based on extended and more recent literature (including that already reviewed in the published one)?