The world of office real estate will be forever changed by the COVID-19 pandemic, but companies aren’t quite sure yet what the new picture looks like.

That’s one key takeaway from a new report on office space trends from CBRE, based on survey responses from 126 companies—half of which are on the Fortune 500—about their real estate plans. But a few things are clear early on in the pandemic, and one is that flexibility is a key component of office real estate strategies moving forward. Among the responding companies, for example, 63% said they will give employees more choice over where they work on a daily basis. Yet only a quarter said they plan to give employees the choice to work remotely on a full-time basis.