Looks like it's a done deal:
LinkHARLEQUINS EXTEND GAME HOSTING OPPORTUNITY TO LONDON IRISH
Tuesday, 14th July 2020 @ 12:00
IN AN ACT OF FRIENDSHIP WITHIN THE RUGBY COMMUNITY, HARLEQUINS HAS EXTENDED FELLOW PREMIERSHIP RUGBY SIDE LONDON IRISH THE OPPORTUNITY TO PLAY THE REMAINDER OF THEIR 2019/20 HOME GAMES AT THE STOOP.
London Irish’s tenancy at the Madjeski Stadium expired during Premiership Rugby’s COVID-19 hiatus. While the construction of their new ground, the Brentford Community Stadium, has been halted during the lockdown, the Exiles have been temporarily left without a home ground.
Harlequins CEO Laurie Dalrymple said "we are delighted to support our soon to be returning neighbours to be able to complete the 2019 20 Premiership season. The Club is doing everything within its power to help get the sport back on its feet following the substantial impact of the Coronavirus pandemic. With that in mind, Harlequins have come to an agreement that London Irish will play their remaining 5 home games in Twickenham, one of which comes against Harlequins".
London Irish CEO Brian Facer said: “Although we may be fierce competitors with Harlequins on the field, even rivals can support each other during extraordinary circumstances such as these, and I would like to thank the Quins Board, and in particular their Chief Executive Laurie Dalrymple and his team, for their positivity in accommodating our matches.”