IMO, I think that while they are ending DEI "programs", every med schools mission of "serving the underserved" will remain the same, and they will still have clubs, interest groups, and opportunities that have similar if not the same purpose as the DEI programs they are discontinuing. Also, I imagine the application process will still focus on holistic review that takes into account every student's experiences and upbringing.
I think we can all agree that a person who is underserving of being admitted should not be admitted just because they fill a statistic (and I don't think med schools are doing this in the first place), or a person in med school should not be given preferential treatment solely based on a demographic factor. However, understanding implications that come from these demographics and upbringings, and finding ways to break these barriers, will still be a theme. Little timmy who grew up with a CT surgeon father will often have "better" experiences than someone who grinded their way from inner city baltimore, and I don't think that sentiment will disappear.
EDIT: I think the biggest issue is the pulling of funding for research. We are already seeing implications of this, and I don't think it's going to get better anytime soon