Poor poor poor lonely Jean. She must be so lonely. Lets fix that!!!

You should be able to get multiple dragon eggs, and be able to hatch them into ender dragons. the idea is that you could find a dragon shrine, a structure in the end that would contain a ender-dragon egg. you could place a ender dragon egg on a purpur incubator, which would burn popped chorus fruit and slowly hatch the egg. when the egg hatched it would spawn a baby ender dragon, which would wander around, and slowly grow up. it aged like a horse, it got a pixel bigger every once in a while. you could feed it chorus bulbs to speed up its growth, and it would be none hostile. it wouldn't drop anything, and wouldn't have a death animation or boss bar. it would simply fly around, and land every once in a while. There could be a achievement called Re-Population. That would be awesome and cool and a awesome end game goal.