I imagine plenty of current consultants are crossing their fingers in hope!
As some of the other experts pointed out, this will fundamentally be driven by the client's needs.
Certainly, as clients adapt, so will MBBs. But what else is important to consider? As you pointed out, the question is how the nature of work will change.
I think whilst we might see less frequent travel and more video-conferencing, the question is whether the type of work occurring (that may have changed in the crisis), will impact these travel patterns more and be more permanent?
Certainly, one way is how many corporates have realised the need to accelerate their digital transformation. This can mean distributed working on the client's side, which will of course influence ways of working for consultants.
A second way though could be more tactical and that is firefighting occurring in response to the negative impacts of the crisis. I would expect cost-transformation, divestiture, and operational improvement work to accelerate in the wake of the crisis. This could mean MORE travel to various regional subsidiaries or shared services centres as these orgs undergo right-sizing