We used to be a lot more transparent back when it was just Line 6, Fractal, Kemper, BOSS, DigiTech, and Atomic because we all stayed in our respective lanes, respected each other, and developed and marketed our product lines in good faith. Cliff could talk about some idea he had, and although we could sometimes accurately predict how it might manifest itself, it'd never impact the rest of our plans. Hell, we accidentally came across a photo of an AxeFX III chassis like nine (?) months before Fractal announced it. A couple of us may have zoomed in... twice? and then promptly forgot about it because we didn't want it to impact our work.
The market is very different now and a lot more cutthroat. It's also the reason why we shuttered our Line 6/Ampeg IdeaScale service—no reason to make other companies' Product Managers' jobs easier for them.
So the sign in question that I'd be pointing to would read "We can't talk about future plans," which sucks because I'm really really excited about our future plans.
This reminds me of a story: Back when I was at Roland/BOSS in the late 00s, it was common for us in Product Support to not learn about new products until a week or two before they were announced at NAMM. (US-based Product Marketing Managers would know, but they kept everything top secret.) So we'd have to learn enough to demo the new synths, grooveboxes, multitrack recorders, and guitar processors in mere days, because it'd take a good week to build that massive convention center booth.
Conversely, my very first day at Line 6 (starting as a Technical Writer), my boss invited me into a meeting where they mapped out YEARS of future Line 6 products—hardware/firmware mockups, specs, feature definition, everything. It completely broke my brain and triggered imposter syndrome, like "Why am I here? I'm not supposed to know this stuff!"
I've heard things are much different now at Roland US, but back then, lids were tight.