I don't get your point.
Was he wearing purple?
Yes?
Then he was a purple ranger.
I didn't list number or status, just color.

Was KabutoRanger red? Yes? Then he was a red ranger.
Was Dekamaster black? Yes? Then he was a black ranger.

Their status may fall under "Extra", "Sixth", or "Other hero", but they were transforming characters into a suit of a specific color. :I

Yet you people count Gosei Knight as a sixth.

Well he is the 6th ranger of the team dude. You seem to base most of what you know for ranger classifications on Gaokaiger like alot of people. I'll direct you again to the Gokai Cellular which uses 6th rangers. Gosei Knight is there.

He transforms from a header into a suit of a specific color.
You don't need to be human to transform. Just ask Doggie :p

Also Beet J. Stag

More combination rumors!
More Kyorumors!

This info matches up with the sketches seen previously in this thread.

Please help my poor math, but that means that aside from the six Rangers, there are 4 auxiliaries, namely Ankydon, Bunpachy, Pleson and Bragigas?

Yup! Akyodon and Bunpahcy are new arm but Plesion will form a back mask and shoes for Kyoryujin and Bragigas will be a giant carrier as seen in those "leaked" mech sketches from last month.

My wallet just cried out in pain and the thought of all of this being real :D

Hope this is true.

Ebikawa Kenji (Go-on Black) and Shibue Jouji (Ibuki) will be appearing in Kyoryuger.

http://sep.2chan.net/cgi/g/src/1367224829292.jpg

渋江譲二 Jouji Shibue
13年05月26日　　　　　　　　　　EX『獣電戦隊キョウリュウジャー』
http://www.japanmusic.jp/2011/11/post-287.html