http://imageshack.com/a/img924/9602/7HZYTL.jpg
Another shot of the silhouette.

I expect a lot of the design work is already done so if we're screwed we have been for a while. I certainly hope not though.

One thing that I find very interesting, is that the "capsule" silhouettes are different, which may mean that each gimmick item has unique molding like the Switches, medals, and shift cars, rather than repaints like the eyecons, and gashats.

There's a guy on /r/kamenrider who claims to intern at Toei. He said the following:

-Build is a scientist.
-Build is red/blue split along the diagonal in the scan.
-Build's eyes are different colours depending on which side they're on.
-The bar on the right of the driver holds the bottles.
-The bar on the left is down, slowing that Build is transformed. If it's up he's untransformed.

Good catch! It's two different textures, with the honeycomb to the upper-left and a hard-to-define purple pattern to the lower-right. I also hadn't noticed the different shapes to the bottles/capsules/presumable-collectibles. This plus the asymmetry of the helmet (which looks like it has a crest in two completely different shapes) evokes the build-a-Rider vibe of W and OOO. I could easily see the two bottles representing - providing, really - each motif on the crest (and presumably chest given the asymmetrical shoulder detail.)

Given the gear logo - and I assume this is the real logo for the series - "Build-a-Rider" sounds more likely to me than construction or bodybuilding. Given Toei's love of multiple meanings, though, watch it be come combination of those things.

Given that W already did a Rider split down the middle and OOO was split into three sections, I'm curious about how they'd implement this (assuming these guesses are in the right ballpark.) Actually, come to think of it, the logo and the background of the bottles suggests a diagonal split in a very specific shape. I'm wondering if the suit will do something exactly like that, only in multiple segments: diagonal-split helmet and diagonal-split suit.

Hm. Perhaps the right crest and shoulder details aren't part of a second half, but are instead part of the suit's base design, so everything above the split is the "build-on" part of the Rider. (Well, or everything below the split.) I'm imagining a retail toy line in which the figure has a partially hollow chest - and maybe helmet - that can be fitted with different build-ins.

With all that said, I am strongly hoping that the bar that projects to the left at waist level is an item kept secured to the back and not, y'know. An incredibly impractical piece at the front of the Driver. I wouldn't bet on it, though, since Driver design hasn't been trending more practical, and that thing looks suspiciously like it could be a lever.

If he's legit, my guess is he won't be interning much longer.

Maybe it's referring to a preview set like ghost had in drives surprise future set? They also sold the Ore eyecon prior to the release of the series if I remember correctly.

Here's my random, shot-in-the-dark, based-on-very-little-info prediction...

1: Build will be a back-to-basics robot/cyborg/android. (This explains the gears.)

2: His gimmick will be an ability to swap limbs and pieces of his body for other parts. (This explains the fragmented, asymmetrical look of the silhouette.)

3: The bottles are filled with either an Enetron-like or engine oil-like fluid that powers/lubricates/manifests Build's machine parts.

Again, this is based on almost nothing, and I don't really care if I'm right or wrong. :lol

Kamen Rider Build illustration fanart

Credit to MELONKOI

https://pbs.twimg.com/media/DBsabNqWAAA0QDL.jpg

Build's full costume still not yet revealed but this fanart is very cool too.

That looks awesome. I am excited to see what it looks like. I definitely see the red and blue color scheme though.