In 15+ years of pastoring, this is the most unusual time. You've heard the phrase, "New Normal" - there is a likelihood of a "New Normal" for churches moving forward amidst COVID.
First, online worship will continue to thrive. If a vaccine for COVID is discovered tomorrow, many folks have become so accustomed to online worship - they'll continue using that option. They've also realized online worship allows them more time. Pastors must become accustomed to preaching for a camera, accustomed to empty pews (see above).
Second, masks are here to stay. Until there's a vaccine, many Americans, including those attending "in person" worship - will wear and expect others to wear a mask. I believe fighting against wearing masks is a losing battle - it's not a moral issue. It displays love for neighbor.
Third, churches should start thinking missions as local. This Friday, our church was supposed to bring 40+ people on a mission trip to Vermont. COVID postponed the trip. Instead of Vermont in July, we'll be collecting and delivering food throughout Lexington. Local missions is an urgent need - churches need to raise their hand to go and become community-centered.