More types of dragons?

Could we get nether dragons for Minecraft? I think it would be a really cool idea for a new boss, the ender dragon, the wither, the elder guardian, and a nether dragon of some sort? it could protect a stash of a bunch of gold bocks somewhere in the nether, and you would need a device to track it down. it could then leave a nether dragon egg, which would have no use, just a prop. maybe it would have some mobs protecting it, like the ender dragon having its endermen, the nether dragon could have some mobs protecting it, like piglins or something.