I don't think Super Sentai needs a break, just some more creative reimagining of the franchise to keep it fresh & interesting. There are still alot of themes yet to be explored, and ideas yet to be tried. Toei proved that they are willing to try things differently, such as the Go-On Gold & Silver, female Shinken Red, and the like, and if they keep giving the series a new wrinkle here and there the audience will be interested. I do think that they have, by and large, moved the franchise into a more lighthearted direction lately, and I'd love to see them going for a darker, and more mature approach in the future, like Jetman, Maskman, and Timeranger.