It's been done before (Changeman and - ugh - Magiranger leap to mind), but it's pretty rare.

goggle yellow , dyna yellow , denji yellow is 1st super sentai series male warriors

It shall pierce the heavens.

The correct vernacular is "Train Dong" :p

I don't know about everyone else, but this excites me. Probably because I like that there's a pink and a white on the same base team again!

I'm going to say 10. The main five mecha gattai, a mech that acts like a shuriken pouch and 4 aux mecha that are shuriken shaped.

If you are talking about first male Yellow how could you forget Kiranger, the big daddy of all male yellow heroes?

I just hope the 6th ranger is not gold or silver. I'm so sick of those two colors always being used for 6th rangers and it been like that since Gaoranger in 2001.

True. If they are gonna go metallic again why not bronze? It is time that color is redeemed and not be "that color henshin heroes don to burn to a crisp in the Earth's atmosphere".

Purple could work for a ninja. Or possibly even black. Been a while since we've had a black Sixth.