Multiple main end island

One of the problems with dragon breath and fighting dragons right now is the fact that every time you summon an end dragon into the end, the dragon destroy your builds you have in the main island. It becomes a choice between whether to build on the main island or to get more dragon's breath. Most players simply choose to only gather a limited supply of dragon's breath and never deal with the end dragon again. A solution could be going out far into the end (say +10,000 blocks) a player could start finding islands similar to the main end island with a end fountain and obsidian pillars that can be used to bring the dragon back. This end dragon would stay around this new island rather than the island at (0,0). In this way, the dragon's breath still has a unique way of being obtained (by fighting the ender dragon), at the same time allowing players to have the freedom of building on the main end island.