Pecker is a key witness in the case against the former US president, who is accused of falsifying business records to cover up hush-money payment
The London men's tournament, the Langford women's tournament in Canada, and the Paris combined tournament which were to be played in May have been provisionally postponed until September. The Hong Kong and Singapore men's tournaments, due to be played in April, previously had been postponed until October.
The under-20 tournament, which was to be played in northern Italy in late June and July, has been cancelled because of the severity of the Covid-19 outbreak in the region.
Some qualifying events for the 2021 Women's Rugby World Cup and 2023 Rugby World Cup have been postponed and a qualifying tournament for the Tokyo Olympic Games sevens is under review.
"We are in close dialogue with the IOC relating to ... options to replace the final repechage tournament, should that be required," World Rugby chairman Bill Beaumont said. "We are considering all options to ensure a fair and credible conclusion to the qualification process."
Beaumont said World Rugby is in "continual dialogue" with unions, regions and the players' association over the wider global impact on rugby "including financial implications driven by government and health authority measures to combat the spread of COVID-19."
"To that end, the World Rugby executive committee is driving the implementation of a detailed action plan that will guide us through this challenging period as a sport unified across the international and domestic environments."
Pecker is a key witness in the case against the former US president, who is accused of falsifying business records to cover up hush-money payment
The oil and gas conglomerate and Fifa, the world governing body, sign major sponsorship agreement
Toomaj Salehi risks being hanged after the conviction on the Shariah charge of "corruption on Earth" by a Revolutionary Court
Aid groups warn any invasion would add to already-catastrophic conditions for Gaza's 2.4 million people
The American they will face Australia and Serbia on July 15 and July 17 as part of their preparation for the Paris Olympic Games
The leaders emphasise that the deal to release the hostages would bring an immediate and prolonged ceasefire in Gaza
Dubai-based Sumit Augustine has had a philosophical approach towards spending
The regional upswing also defies oil production cutbacks