The Milky Way will collide in the future, in about 4 billion years with the galaxy Andromeda and that collision will lead to formation of a much bigger galaxy. So we have that to look forward to.
This is the way that everything in the universe was formed. It?s a never-ending story of things colliding?small things colliding to make big things, big things colliding to make bigger things. These are the events that shape today?s galaxies.