Most DRAM is already purchased through contracts with manufacturers.
Manufacturers don't actually want too many extremely long term contracts because it would limit their ability to respond to market price changes.
Like most commodities, the price you see on places like Newegg follows the "spot price", meaning the price to purchase DRAM for shipment immediately. The big players don't buy their RAM through these channels, they arrange contracts with manufacturers.
The contracts with manufacturers will see higher prices in the future, but they're playing the long game and will try to delay or smooth out purchasing to minimize exposure to this spike.
> Additionally, we're likely to see Chinese fab'd DRAM now, which they've been attempting since the '70s but never been competitive at.
Companies like Samsung and SK Hynix have DRAM fabs in China already. This has been true for decades. You may have Chinese fab'd DRAM in the computer you're using right now.
Are you referring to complete home-grown DRAM designs? That, too, was already in the works.