Skinny Luka Doncic.
Luka Dončić Talks Weight-Loss Journey, Advice From Kobe Bryanthttps://www.youtube.com/watch?v=VIIL6lb4qD0
I am glad he can do it, unlike that one guy from the Pelicans.

Kidding.
I think this change is a sign that he will be pursuing that championship again, and with weight loss, he can move faster and probably jump higher now. Even Draymond Green has something to say about it.

This will be good for the Lakers. He can now become a point guard and use run-and-gun plays if he shapes up and moves faster. Now, my curiosity is the reaction of Nico Harrison. Will there be regrets?

Edit: OMG! We got the same news as @MK-74. Didn't see the post at the time of writing.
That's definitely good news for the Lakers. Luka even said that his verticals have become even higher than the first time he entered the NBA.
I think what becomes his motivation is the disrespect the Dallas Mavericks gave him when he got traded to the Lakers.
I think he's now become even more serious in pursuing a championship for the Lakers, so the Mavs will realise what kind of player they let go.
I just hope that Ayton and Smart will become effective with the Lakers roster. If that is the case, the Lakers will become a serious finals contender next season.