There will be no OnePlus 9 Ultra next year, but the OnePlus 9 and OnePlus 9 Pro are coming
OnePlus 9 Pro
So, there will be no OnePlus 9 Ultra, to which OnePlus was believed to have assigned the model number LE2127. Typically, these model numbers denote regional variants, but they may not be the only ones that OnePlus currently has in development.
This year, OnePlus released four model numbers of the OnePlus 8 and OnePlus 8 Pro split across China, Europe and Asia, India and North America. Similarly, there are only two model numbers of the OnePlus Nord - one for India and another for Europe.