While Toei lost whole ability to produce anything but long-running cheap shows...

...Bandai did almost the thing Toei could do right now.
Why to love good old anime? Because it talked with us like it could to adults. It used themes of love, destiny, lust, angst, everything kiddie shows simply can't. As well as this one. Fanservice aside, this sentai show is nothing near dramatism of BSSM but that is why it's good. Actually, it gives a piece of serenity in a world of tragedies and bad news. And it gives childish-in-a-good-way touch. It's beautiful in it's own way. Like a living toy.
I dream of new season of this, with same cast, but all those themes drama missed. Japanese dramas are known for detective stories. Imagine those characters grown-up, investigating murders crimes and conspiracies. Free from fantasy, but not from love...