The IOF has announced that WOC2020 rescheduled for October in Denmark has now been cancelled.
The full IOF announcement is here: https://orienteering.sport/nokian-tyres-world-orienteering-championships-2020-and-european-orienteering-championships-2021-cancelled/ .
IOF has attempted to reschedule what would have been the first sprint only WOC, including apparently trying to incorporate a sprint into WOC2021 in Czech Republic, but have been unable to find a solution. As well as the continuing pandemic, not only are travel restrictions due to COVID-19 an issue, but the resulting economic implications are causing a reduction in financial support. Subject to agreement sprint WOC2022 will now be held in Denmark, with Scotland (the original hosts for 2022) taking on WOC2024.
At this stage there is no decision on JWOC2020 in Turkey, but the rise in cases in that country means that it is most unlikely to go ahead.