Wembley will play host to the largest sporting crowd in the UK in more than 15 months, with roughly 40,000 fans in attendance for the final four Euros fixtures at the stadium.
UK culture secretary Oliver Dowden revealed the Government has identified up to 20 pilot events across sport and entertainment.
UK Prime minister Boris Johnson had revealed on Monday that the planned full reopening date of June 21 had been pushed back, potentially four weeks until July 19.
"We want to gather further evidence on how we can open up all big events safely, and for good," said Dowden.
"The expansion of trials of the NHS app and lateral flow testing will mean that bigger crowds will be able to attend a limited number of major sporting and cultural events early this summer as part of our events research programme.
"In the next few weeks this means more fans enjoying the Euros and Wimbledon, and some of our biggest cultural and sports events."
The Wimbledon finals will be played in front of capacity crowds, the British government confirmed.
The women's final on July 10 and men's final on July 11 will be contested in front of a full Centre Court in SW19.
The Euro 2020 last-16 match at Wembley on June 29 as well as the semi-finals and final in July will be staged in front of a 50 per cent capacity crowd.