I'm really excited for MSFS 2020, and I've got the rig to run it in ultra, but I will not be deleting X-Plane 11 any time soon. I've invested too much in it's customization. For example, it's the only sim that features the tiny little airstrip near my home in Utah. I suspect it's not in MSFS, nor is it in Aerofly FS 2 (another great sim BTW). X-Plane 11 earned it's place on my PC for a while yet.
"For we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high places.
Wherefore take unto you the whole armour of God, that ye may be able to withstand in the evil day, and having done all, to stand." -- Ephesians 6: 12-13 KJV