This is so random but I love it! My question is how? Didn't the Ryuki timeline get reset so he would be able to transform? Even if that didn't happen, isn't he dead?

Well except for Beast and Brave, the others Riders were either a villain or anti-villain throughout the run of or at some point within their respective series. So Dark Kiva is most likely a resurrected King/Bat Fangire, but why he's using Kiva's Zanzat Sword is confusing. King did have the Zanzat Sword but it lacked the Zanzat Bat attachment and never used it as Dark Kiva.

Apart from that, it'll be interesting to see this.

Continuity and Kamen Rider aren't really the best of friends (depending on which series and/or era). Since Decade (not counting the A.R. World Ryuki and its Riders) Ryuki's continuity has been seemingly retconned for unexplained reasons or just forgotten entirely. Although it's very unlikely, I kinda hope that this special explains how the riders from Ryuki still have their powers despite the whole timeline reset.

I wonder if we'll get an Ouja Survive form out of this.

....do you even have to ask how I feel about this? :D

Although, yes, Ryuki's continuity is totally fucked. I always headcanon'd that the Ryuki that shows up during crossover events is actually the one from the movie and not the show (that at least has some continuity with Agito), but that still doesn't explain how Ouja is alive.

Don't hold your breath for an explanation. Beast et al. are probably just going to be ghost suits.

Toei never gives a wet fart about continuity, from what I've seen (sometimes within a series). I mean "scalpel of justice"? Not even that works.

Watch it, enjoy Takashi Hagino's nonsensical return as Asakura (looking really messed up). Enjoy the suits coming out of the mothballs one more time, the suit actors getting another much needed paycheck.

Or not. Looks pretty arbitrary. The Snipe episode sounds promising.

Brave looks pretty nonsensical but it looks fun, I suppose.

Snipe will probably be interesting. I do wonder how they're gonna do it though, I can't imagine they'll make a new suit just for the Blue-Ray specials, and Snipe looked different five years ago. Unless the title is misleading and it's not gonna be about that stuff...

and now we have Kamen Rider Ex-Aid, Kamen Rider Genm, Kamen Rider Brave and Kamen Rider Snipe....

They should make a Kamen Rider Lazer where Kiriya gets to hang out with other unjustly murdered Riders or something.

Sadly Toei never makes new suits for old Riders getting new forms (But Ichigo!) Anniversary movie

When in peril and despair regarding rider continuity shout these two magic words*deep breathe*

ONORE DIKEIDOOOOOOOOOOOOOOOOOOOOO :lolol