So yes and no, I understand where you're coming from, but there's always a number of factors to consider.
Taking some examples from things I've observed in the hobby:
1) Companies sharing a license announcement that might be some time off.
Of course, the big goal of this is to drum up hype and interest from the consumer. It's exciting when that one license you might have been waiting a while for is finally being made by XYZ. Now you may not see anything for some time, which is understandable since development takes a good amount of time.
There seems to be what I would call the "Collector's Phases" when it comes to licenses. Starting with the beginning of the phase, if you don't make announcements, people get antsy asking:
Phase 1
"Where is X license? How come you don't do Y license? Why do you keep making so much of Z license?"
So imagine the company makes the negotiations for a new demanded license, the sign off happens, followed by the announcement.
Everyone is hyped, excited, speculation follows. Then the next phase happens:
Phase 2
"Why is X license taking so long? Where are the updates? Why didn't you just announce it later if it wasn't ready?"
Okay that's a bit of a pinch right? So fast forward a bit...the company finally gets the products up for pre-order.
Everyone is happy, placing their orders, throwing countless sums of money at the company, all good right? Nah.
Phase 3
"When is X shipping? Why do you keep putting up so many pre-orders? When is Y going to be available pre-order? You're putting up too much stuff. I want to pre-order Z now it's been so long!"
Basically the phases repeat in a cycle on different licenses.
What I mean is, I know it's human nature to get excited about things, I totally get it. Waiting is just the nature of the beast that is collectibles.
Announcements and hype are two big factors that keep current collectors interested and new collectors coming in. That's how I became interested with certain companies, even knowing that the finished piece was still far off.
Coming from the video game scene, I see the two being very similar in some ways. A game developer will announce some cool title that gathers interest, but there may only be a short CGI trailer of the game at the time. The actual gameplay details might be a long ways off (
looking at you Kojima and Death Stranding).
I don't know if there's anything that could be done to reduce the wait time. You could make the announcements once the prototypes are near completion, but you risk sacrificing interest from other collectors. There's so much coming out in this hobby that I can see the logic with making these announcements ahead of time.
Sure, sometimes there's not much communication, though that could be owed to the licensor as well.