Looks like resourceful players have decoded some files from the game’s latest PC update. As you can see from the code there are certain instructions regarding new kinds of armor, quests, and some known locations from Morrowind.
Among these things there are the various lines of code with the words “DragonMounted”. Maybe you will be able to ride your own dragon. Or it will be only a scripted event. To know exactly what this is all about we just need to wait.