I agree, never give up hope that even if not inspired themselves, they may inspire others. And as expanders are becoming more popular, berhaps they too may experience boobie greed.
Now if only we knew the name of the company Beshine found.
Beshine will NEVER disclose such information, after all, as a natural A Cup which is now past Z Cup, why would she give other women with natural bigger breasts such information. I don't think she wants Foxy to surpass her. My $0.02. 
Perhaps, while claiming to have the biggest boobs, I'm not sure the title means that much to her. The thing is, she did say that the company was not in the implant business, so, while vague, it is a clue, but what other companies make sterile silicon implant devices should be the question. There are a number.
And if there are that much questions about those implants there will be a company making them.
Look at that amount of those companies making these silicone fake breast plates.
At a time when mastasia was on the peak of those content, all of them were special made by some props or makeup studios and now you can have them online within some days.
Or think about those expander implants at the beginning there were only designed for temporary use to create a big pocket for the final implant size.
But nowadays a lot of these expanders stay a final ones or the ones with the option to go bigger when ever wanted.
I think expanders should be the primary used implant type when the woman is not sure about her final size.
So they also have the possibility to do some fine adjustments when dealing with different breast sizes compared left to right side.
Tissue expanders had but a single purpose; to expand the skin and they had like a 12 month life It wasn't until Beshine announced that she had found a company willing to make permanent expanders that expanders became a thing. To this day, I think of her expanders as likely traditional implants of enormous size, but with a attached short IV line & port. Let's face it, tissue expanders are just thin implants with a port anyway.
That is my feeling too; if the company believes there is a market, they may test out the waters. Last I checked, the expanders themselves were almost half the price charged, about $3000. I would bet those deeply vested in obtaining enormous fake boobs, like Foxy and Mary, would be willing to pay 500% the price to specify their own volume; a really nice mark-up for that company. So complete with the cost of a massive pigskin lattice (expensive) internal bra, you may get away with whatever enormous size you choose for under $35k
And I have lone thought the same, all implants should incorporate some expander capacity. About 64% of all girls state that they wish they had gone larger after implant surgery and like 4% wish they had gone smaller, a port would allow for each rather than another surgery. Adjustments made easy.
We have seen a few sources talking about the backlog for expanders in Europe last year, so they much be catching on there. We just need some company to test the custom size waters; I'm sure European plastic surgeons have made it obvious that there is a limited market.