"As has been stated by the company, the CEO at IMEC will...

A whole lot happens behind closed doors for a long time in development circles that no one knows about until it is ready to be announced.
We were in lockdown for a long time with WD/HGST. Same situation.
In regards to WD/HGST, why are they not picking us up and taking us over if they thought that we are so great?

"As has been stated by the company, the CEO at IMEC will personally introduce 4DS to a bunch of household names if PL6 is successful."
I have as yet to see any form of communication from IMEC in any form in regards to 4DS.
I have seen communication from IMEC in regards to other companies!
As I have said previously, until we have a "Product" to sell, we will not be going anywhere. Working with cells and producing Mbit arrays on a test platform does not attest to a product taped out and qualified in a foundry ready for a production run.
There is huge developments going on around the world atm in the mem space and unless you have a "Product" you will be way down the ladder to sell anything.
Potential clients want products now that are faster, greater endurance, less power, scalable, cheaper to manufacture as a product or integrate into another product.
It is very hard to convince a potential purchaser to buy something that is not proven and stable, where they have to spend possibly hundreds of millions to bring a product to the surface and then try and sell it to a client.