A suggestion for you if you would like to keep your world. You could go into a external editor like, 'MCEdit' and delete chunks. You could make a square of original chunks and everything outside of that could be deleted. You keep your creations, but don't have to travel extremely far for new content. This also protects your world from getting too large. Just an idea if you feel like keeping your old world.
If you plan on restarting in a new world, I would recommend waiting as I believe the patch is very close to be fully released.
Have a wonderful day.