Rumour has it that NVIDIA has delayed the release of its GeForce RTX 3000 GPUs until September. Citing the cancellation of GTC 2020 and the re-scheduling of Computex 2020 as reasons, NVIDIA apparently planned to its Ampere architecture this month. This may be nothing new though, especially as NVIDIA would struggle to delay something it never formally announced.
https://www.notebookcheck.net/NVIDIA-Ampere-GeForce-RTX-3000-GPUs-remain-on-track-for-a-late-Q3-2020-release.459373.0.html