Another huge problem is the transition path from "everyone in the same office" to "everyone working remote". If you have 60% of your team sitting in the office, and 40% remote, you can be absolutely certain that those 40% will be out of touch on all those important decisions that just emerge during a watercooler conversation. (The watercooler also provides a way for different teams to get to know each other, even if they do not work with each other directly, thus forging bonds that might later turn out helpful.)
With all that (plus what you said), most individual employees will prefer the office over remote access. So remote would only work if you moved everyone from the office to remote access at a single point in time.
With all that (plus what you said), most individual employees will prefer the office over remote access. So remote would only work if you moved everyone from the office to remote access at a single point in time.