To me the whole matter of the emails should be put to rest. Wikileaks proved it was intentional and a lot more but there is no benefit to the country to pursue it. That would just prolong tension between the left and right with no gains. Yes, others have done less and went to jail but there are bigger problems and it could be viewed as Trump using his position to gain revenge now.
The Clinton Foundation however, is another matter. This is serious stuff and what CF did was a bigger threat to the US than emails. Wikileaks again proved that there was malicious intent by Hillary and CF to use her position for financial gain and subvert US security. Bill blatantly meeting with the AG, the Haitian theft of charitable funds, trading arms for "donations" knowing those arms would end up assisting ISIS, and so much more we have yet to learn. Obama was complicit in these actions and his refusal to allow the military to take out ISIS when they had the chance proves that. Since CF is already under investigation by the FBI and who knows what other agencies it is not Trump initiating anything. Let the investigation run it's course and the chips fall where they may.
I'm not sure if Obama can give blanket pardons for unspecified crimes but can he pardon himself? I'm convinced any REAL investigation into CF will come back to haunt him as well as Hillary and others in her circle.