I think a hybrid is more likely for the foreseeable future currently but I can see completely telephonic and electronic video interviews exclusively two years from now. I would tend to agree and lean in that direction.
The DOS is conducting their background investigations entirely by video, telephone, fax, and e-mail. They want primarily video interviews on Teams. Problem is it takes more effort to schedule a video teams interview than just to drive across town and interview the reference or conduct a telephone interview. You have to prep the source, advise them how Teams works, have them create a hotmail or outlook account to use Teams, etc. Imagine a 65-75 year old person or source we need to interview and trying to figure out how to use Teams video conferencing. It’s a joke. This whole entire industry has become schizophrenic and delusional. No reinvestigations. Let’s just rely upon the public to self report? 
Unreal!
And don’t get me started on the lack of issue resolution we get from video and telephone interviews to include Subject Interviews and record reviews.