Rey retrieved the pieces before escaping Snoke’s Star Destroyer, and she looked at them as The Last Jedi wrapped up while she was aboard the Millennium Falcon with the other Resistance survivors.
That said, it’s unclear if the lightsaber will look exactly like it did before or if there will be some design differences.
Looking at the picture below, you might that this lightsaber was beyond repair, but word has it that when Episode IX rolls around, Rey will have it back in working order.
You’ll recall that Luke Skywalker’s lightsaber was broken in two when Rey and Kylo Ren engaged in a Force tug of war after the former refused the latter’s offer of ruling The First Order by his side.