The larger vendors are already relocating to more favorable (at the moment) states. Breazy was based in NYC, but moved fulfillment to Las Vegas some time ago. Their home office is now in Delaware and they closed their offices in NY. MVS relocated juice fulfillment to CT when it appeared NY was coming down on flavors, but kept hardware fulfillment in NY as that didn't seem in danger.
I think a company as large as Eightvape may relocate as well if the tax burden is too painful. However, if they have a lot of back stock, especially drop shipping for other vendors, they may sell off a good amount of inventory that's not been moving well, as it may be better than the cost of relocating that stock to another warehouse.
All of this is conjecture as there's no way to know what folks have in mind. It is clear that larger vendors have markedly expanded into the CBD business. They can still theoretically sell hardware for CBD liquids, while dropping nic juices as necessary.
It's one of the grey areas they may exploit for a little while to see if the FDA will come after them for it. They simply present all the vape gear as for CBD, not nicotine use. We could then buy CBD "hardware" and repurpose it as we wish. Yes, it's a loophole bound to be closed, but if the FDA doesn't rush right in to regulate, they can generate revenue that way for at least a while as everything else shakes out.