Wow, the hexagons look similar to Fox's shine.
My summary of the moves:
PK Freeze:I'm guessing that like PK Flash the snowflake floats up, and then down, and explodes when the special move button is released. Either an improved or a worse version of PK Flash.
PK Fire: Looks the same at first, except for it goes sideways in the air. The pillar of fire looks way bigger though, so I'm guessing it does more damage. I'll bet the startup lag is still crappy though.
PK Thunder: Not much to say here, seems exactly the same, except for the appearance of the move when you hit yourself with the lightning. Seriously, a little explosion of fire? Seems much less impressive than the big explosion of light Ness had.
PSI Magent: Looks the same, except for that the magnet is in front of Lucas. Does this mean if you get hit from behind you won't absorb? If so, that would suck, because they really don't have to make it even worse than it already is. It was already almost useless in melee, unless you were on a team with Fox...but maybe you can slightly move it around you, like when you shield?
Up Smash: Looks powerful and promising, like Fox's up-smash. And judging from the picture, it has a good range, too. Don't dissapoint me.....
Back air: If I'm not mistaken, this is the first back air meteor in the game. Maybe since its shaped like a shine, it will spike like a shine? Hmmm.....
Tether Recovery/Grab: I hope it doesn't have horrible lag like other long ranged grabs do. Well, I guess it's better than Ness's short grab. And as a tether recovery, it looks short compared to Link's and Samus's.
Down Smash: Looks dissapointing, similar to Mewtwo's down smash. I don't like one sided Down Smashes, because they are lame. It would be awesome if Lucas covered both sides at the same time with both hands.