Now that the series ended, all the remaining Eyecons are going to be special bonus only, making them harder to obtain.....
Ghost Legend Rider Eyecon (R17) is bundled with the movie's DVD
Ex-Aid Legend Rider Eyecon (R18) is bundled with Gamer Driver
Shinsengumi Eyecon is bundled with the ticket for the stage show
Da Vinci Eyecon is bundled with a special magazine, it seems, like the Showa Rider Eyecon
Tenkatoitsu Eyecon's release is still not known, but considering its counterpart Shinsengumi Eyecon is released, it is most likely going to be released as well, and will be just as hard to obtain.......
They really should do another CT/Gashapon set that contains the special eyecons like Galileo, Ghost (Legend Rider ver.), Da Vinci, Zero Specter, Shinsengumi, Tenkatoitsu, and Ganbarizing.......
Unfortunately we all know it will never happen. Oh well.