The E3 conference has long been canceled, but one of the keynotes is still happening. The PC Gaming Show 2020 has been confirmed for June 6th. Intel, Epic Games Store, Tripwire Interactive, Frontier, Merge, Humble Bundle, Guerrilla Collective, and Perfect World have already signed on as partners. They have not mentioned the exact format, but it will feature gameplay footage, trailers, and announcements.
Developers of PC games can apply to be a part of the show through the announcement on PC Gamer. They do not list a cut-off date to submit the form, but the show is only a month away so you will want to fill it out sooner than later. The submission form claims that their 2019 show attracted 6 million viewers, which is significant exposure for a small indie team.