I was wondering the best way to Migrate Two 2012 DHCP Servers with Replicaiton-Failover Load Balancing to Two New 2016 DHCP Servers.
I am guessing you would Deconfigure Failovers. Then do a Export of DHCP Data and the Import to the New Server. Then Configure Failover.
Yes, I would do what you suggest. Most clients that already have an IP address would not notice migrating DHCP because they have a lease. How big is the scope you have there? Sounds more like an enterprise issue to me.