ALL PICTURES BELOW ARE NOT MINE AND I DID NOT MAKE ANYTHING BELOW AND I DO NOT KNOW HOW THE PEOPLE THAT DID THEM DID WHAT THEY DID.
At the recent toy fair, we saw the last set of deluxe Ranger Keys of Red Rangers that included all that are left.. except for Ninja Red.
Ninja Red is included in Gashapon Keys Set 3. We will see, I mean I would guess they will release it in a special way.
UPDATE---the Deluxe NinjaRed key comes with the treasure chest.
Yahoo! Japan bidding site has these cartons that fits the Ranger Keys to save as an album but I don't know if Bandai made these or not.
Gokai Red has the most keys with 10: Series 1, Series EX, Series 3, Series 5, and Series 7 of Gashapon and one Candy Toy, the Mobirates DX key, the shiny metallic one, TV-kun special and Gokaiger theme CD one. 
Gokai Silver follows him with 6 keys: Series 2, Series 4, Series 6, Series 7, Candy Toy and Gokai Cellular DX. 
Gokai Blue has 5: Gashapon Series 1, Series 7, Gokai Gun, shiny metallic one and Candy Toy. 
Gokai Green has 5: Gashapon Series 1, Series 7, Gokai Buckle, shiny metallic one and Candy Toy. 
Go-On Red has 5: Mobirates, DX Set 06, Gashapon Series 3, 6 and Candy Toy Series 3. 
Gao Red has 4: Series 1, Series EX, Series 4 and DX Set 1. 
Deka Red has 4: Series 1, Series EX, Series 5, Series 1 Candy Toy and DX Set 1. 
Gosei Red has 4: TV-Kun, DX Set 04, DX Set 08 and Series EX Gashapon. 
Magi Red has 4: Gashapon Series 1, Series EX, DX Set 1 and Candy Toy Set 1. 
Aka Ranger has 4: DX Set 03, Gashapon Series 3, Candy Toy Series 3 and Tv-Kun. 
Tyranno Ranger has 4: Shiny Metallic special, DX Set 04, Gashapon Series 2 and Candy Toy Series 2.Those that don't have any announced Ranger Key (Deluxe, Gashapon or Candy Toy otherwise) as of yet are:
Clover King, Big One, Denziman (except Red), Goggle V (Except Red),
Dynaman (Except Red), Bioman (Except Red), Changeman (Except Red), Flashman (Except Red), Maskman (Except Red), Liveman (Except Red), Turboranger (Except Red), Fiveman (Except Red), Jetman
(Except Red), Zyuranger
(Except Red & Green), Dairanger (Except Red & White), Ninjaman (Except Red), Ohranger (Except Red), Carranger &
Signalman (Except Red), Megaranger (Except Red & Silver),
Gingaman (Except Red & Kuro Kishi),
GoGoV (Except Red), Timeranger (Except both Reds),
Abaranger (Except Red & Killer), Boukenger (Red & Silver),
DekaSwan, Rio and
Zuuban. I am sure they might release
Signalman, Deka Swan, Rio and Zuuban in Gashapon but who knows.
GRNRNGR.COM'S RANGER KEY CHECK LISTThe following websites are all in Japanese and not in English. Sounds silly to say it like that but some people that read this blog may need to be said like that.
People have customized their Ranger Keys to fit a real key, its not easy because the key has to fit it. They had to take their Ranger Key apart and take out the screws and install the real key. Above key is Ki Ranger key and I found that from this site:
http://shop.plaza.rakuten.co.jp/mazken/diary/detail/201105310001/And people have made their own customized Ranger Keys to look like Kamen Riders...
And virtually anything else apparently.
At the recent toy fair, we saw the last set of deluxe Ranger Keys of Red Rangers that included all that are left.. except for Ninja Red.
UPDATE---the Deluxe NinjaRed key comes with the treasure chest.
Gokai Red has the most keys with 10: Series 1, Series EX, Series 3, Series 5, and Series 7 of Gashapon and one Candy Toy, the Mobirates DX key, the shiny metallic one, TV-kun special and Gokaiger theme CD one. 
Gokai Silver follows him with 6 keys: Series 2, Series 4, Series 6, Series 7, Candy Toy and Gokai Cellular DX. 
Gokai Blue has 5: Gashapon Series 1, Series 7, Gokai Gun, shiny metallic one and Candy Toy. 
Gokai Green has 5: Gashapon Series 1, Series 7, Gokai Buckle, shiny metallic one and Candy Toy. 
Go-On Red has 5: Mobirates, DX Set 06, Gashapon Series 3, 6 and Candy Toy Series 3. 
Gao Red has 4: Series 1, Series EX, Series 4 and DX Set 1. 
Deka Red has 4: Series 1, Series EX, Series 5, Series 1 Candy Toy and DX Set 1. 
Gosei Red has 4: TV-Kun, DX Set 04, DX Set 08 and Series EX Gashapon. 
Magi Red has 4: Gashapon Series 1, Series EX, DX Set 1 and Candy Toy Set 1. 
Aka Ranger has 4: DX Set 03, Gashapon Series 3, Candy Toy Series 3 and Tv-Kun. 
Tyranno Ranger has 4: Shiny Metallic special, DX Set 04, Gashapon Series 2 and Candy Toy Series 2.
It seems Ninja Red is part of the special deluxe set and I suppose it just didn't appear (or wasn't seen) in the toy show.
