i think it is good everything is original in this upcoming series, and i kinda trust the production team, same ones who are behind Percy Jackson and the Olympians
do think the only thing they need to stick with is the different colours for each ranger, but everything else can be refreshed yes
i could deffo see there be an older guy among the rangers, some military veteran or something (who has encountered one of the monsters in his past) that could resonate well with the core PR fandom, someone on the same level of badass as Tommy Oliver but then with a more original backstory, and someone who immediately starts off as a father of two kids for example, reluctant but necessary to protect his kids to go out there fighting again
something like that i can deffo see happen
but that's just a theory from me, to break the chain of young teenagers becoming rangers cliché