The final standard could be four times faster than today's PCIe 5.0 spec, but we won't see products till 2026 at the earliest.
PCI-SIG aims to publish final specification for PCIe 6.0 in 2021
PCIe 5.0 will offer twice the bandwidth of PCI 4.0 while providing backwards compatibility
PCI-SIG now working on PCIe 5.0 for completion in early 2020s
PCI-SIG has announced its latest PC bus standards that will enable multiple GPUs to be used together