UPDATED 8/14/14
The 2009 Super Sentai series is rumored to be called Samurai Sentai Shinkenger and be based on elements like Earth, wood, fire, etc. So their helmets will have the elements on them, much like Ohranger and Magiranger. Their colors are yellow, red, green, pink and blue.One interesting thing I have noticed in this past decade, none of the team's colors have matched back to back fundlemently. I like it at Toei's effort each team color scheme was different. In the 90's, they used the same color scheme (Red, Yellow, Blue, Green, Pink) about 5 times (Dairanger, Ohranger, Carranger, Gingaman and GoGoV), and two times in a row. Also Pink was used very sparingly in this decade where it was used 8 1/2 times in the nineties (White Swallow of Jetman had hints of Pink).
2000 - Timeranger - Red, Yellow, Blue, Green, Pink, Red
2001 - Gaoranger - Red, Yellow, Blue, Black, White, Silver
2002 - Hurricanger - Red, Yellow, Blue, Crimson, Navy, Green
2003 - Abaranger - Red, Yellow, Blue, Black, White
2004 - Dekaranger - Red, Yellow, Blue, Green, Pink, Black, White, etc.
2005 - Magiranger - Red, Yellow, Blue*, Green, Pink, Gold^, White
2006 - Boukenger - Red, Yellow, Blue, Black, Pink, Silver
2007 - Gekiranger - Red, Yellow, Blue, Violet, White
2008 - Go-Onger - Red, Yellow, Blue, Black, Green, Gold, Silver
2009 - Shinkenger - Red, Yellow, Blue, Green, Pink, Gold
2010 - Goseiger - Red, Yellow, Blue, Black, Pink, Silver
2011 - Gokaiger - Red, Yellow, Blue, Green, Pink, Silver
2012 - Go-Busters - Red, Yellow, Blue, Gold, Silver
2013 - Kyoryuger - Red, Green, Blue, Black, Pink, Cyan, Gray, Gold, Violet, Navy, Silver
2014 - Toqger - Red, Yellow, Blue, Green, Pink, Orange
* - technically MagiBlue is light blue, so Dekaranger and Magiranger have a similar color scheme but fundamentally not the same one.
^ - more than one color but the majority of their suit was this color.