I believe the due diligence aspect will be impacted. As there is now a need to share sensitive information electronically, there is a higher risk of leakage. What could previously have been done in an in-person meeting would be to shovel everyone into the data room and not have any forms of media replicated in physical or electronic form to be brought out of the room. This is now a lot more difficult.
I also find that interviews with the management gets a little harder as it isn’t as easy to gauge a person over a webcam.