Yes, it works that way on all of the console versions of Minecraft.
As long as you don't within a certain distance of areas of your world, they will not fully load in meaning that new things from updates like biomes, ores, anything they might add that involves generating with terrain will spawn there.
I am trying to find out if I don't uncover the whole map on my xbox game if there will be a chance of it generating the new biomes in future updates
i know it workes this way for PC but is the map already predetermined and unable to change on the xbox thanks for answers
As long as you don't within a certain distance of areas of your world, they will not fully load in meaning that new things from updates like biomes, ores, anything they might add that involves generating with terrain will spawn there.