President Trump will be flying the 747-8, the newest version of the tried and true 747 Platform if he is Reelected in 2020.
The new Plane is supposed to be delivered to the Air Force in 2018 but may not be in service until 2020 or later..
The two current AF-1 747-200’s are due to be retired then.
Apparently, Obama wore them out.
The VC-25s have been in service since 1990, GHW Bush, Slick Willy, GW Bush, and 0b0la have worn them out ...
After 0b0la, Trump will probably have them fumigated.