Something I noticed, if you squint REALLY hard enough, you'll see all the emblems of the riders on the sword.

Yeah, from hilt to sword tip, it goes:

Saber Blades and Espada

Buster Kenzan and Slash

Calibur Saikou Sebela and Durendal

Falchion is left out.

Whether Cross Saber is ultimate or penultimate, regardless I am gonna say it. Cross Saber is Fourze Cosmic States Vol.2. :lolol

Legit curious given the symbols seem to be at the circular points where the hilt slides up...

This is basically Rampage Gatling but as a sword ain't it? lol

I prefer the form to be called Galactic Saber than Cross Saber, although Cross makes sense in the sense that it's a combination of all the Seiken.

Also, considering that we got Saber x Ghost, and now a blue Saber, that can only mean one thing: The world revolves around Fish. Everything Fish wishes, comes true.

I mean, Cross Saber makes sense because his new Seiken is literally just a cross - as well as his visor and henshin effects. It makes sense when you consider the fact he actually has some homages to Kamen Rider X.

Oh yeah I forgot about the Kamen Rider X homages.

Also this is probably reaching, but Saber being blue might be a reference to Ichigo. What a better way to celebrate the 50th anniversary by the very first Rider suit being blue and the final form of the current Rider being blue as well? Although if he has pink accents (especially pink eyes) this would make a lot more sense.

Don't forget that that there's a type of sword called a cross sword. It's probably best not to read too much into this.

Huh, so they decided to go that route where instead of the actual onyomi they write it as 十, the number 10 in Chinese characters and also resembles a cross but read it as cross. FYI the word cross in Japanese is jyujika 十字架, which translates to 10-shaped rack/stand. In other words within the Japanese context it is seen as a a rack/stand that is in the shape of the number 10 and probably harnesses the power of the 10 seikens Rekka, Nagare, Ikazuchi, Gekidou, Hayate, Suzune, Saikou, Kurayami, Noroshi, and Kaiji so it all fits well.

I wonder if Decade and ZX will be pissed at Saber for being another '10' Rider.