I'm guessing the thing with his harness and the wired cape?

That is technically true that Eternal was both the first SS release with soft goods as well as parts to replicate a "form change" with the filled Maximum Drive holsters.

Yes I mean the wired cape and parts swapping technology

So...what happened to the SHF Rise Hopper? Are they gonna stop selling SHF bikes in the Reiwa Era or something?

Is it too late for it to release? I feel like it'll still show up next year or something. What else could it come with tho? Briefcase versions of the Attache weapons? The Risephone?

I do kinda feel like since they moved the weapons to Vulcan and we haven't seen it by now, yeah, bikes are probably dead. The thing only appeared for about three episodes and a movie because bike laws and more stuff to sell so I'm not too surprised that A) their strategy before was to make certain stuff exclusive to it so you'd buy it, and B) that that still didn't prove successful so they're just abandoning it altogether outside of Seihou. Flaming Tiger was more important and we're hardly seeing that any time soon.

Makes me wish there were alternatives on the bike since I still believe it's part of a Kamen Rider's identity.

Maybe model kits perhaps...

Well, technically speaking the show is called Kamen Rider, and the word 'Rider' just means to ride something (yeah I know bikes are one of the first things that come to mind but come on). And there has been an increase in giant robots in the franchise recently...

I mean with how little bikes have been used in shows as of late (Except Saber so far, they actually use their bikes more than usual surprisingly), "Kamen Fighter" would be a more accurate name for them now but given it's a 50 year-old franchise that's still going you can't exactly change the name at this point.

The briefcase version of the sword is going to be packed with the upcoming Iz figure

How many of us are actually buying the bikes though, even for the early seasons when they were ridden in nearly every episode.