Gonna throw out what they say about Lambda for those that are interested.
Reference: http://www.inside-games.jp/article/2014/07/24/78837.html
Picture 1 Caption: N/A
After: Lambda's base is in the Luna forma, but she varies from the current playable character, Nu. Aside from the new aura that surrounds her, she has a a lot of differences. After the new version update, Nu will no longer have mode change, so expect a big change from Nu as well.
Picture 2 Caption: Drive: Sword summoner Kai
After: She has the ability to summon swords and fire them at long distances.
Picture 3 Caption: Lambda DD/OD Calamity Sword
After: Unlike Nu's Calamity Sword, Lambda's will seek the opponent. (It doesn't say if it only seeks in OD, but that is what is shown)
Picture 4 Caption: Lambda's new move, エクシーガネイル (Not sure how to say this honestly.)
After: She teleports into the air and fires a large sword.
Picture 5 Caption: Nu's new addition, jump 6D.
After: Nu received a new air ability, This should add more variation to her offense.
Picture 6 Caption: Battle Planner comment
After: Lambda's base is the Luna form CP so she feels like Nu, but all of her D drives are different.She can't act parser off of her specials, but her style will be to lock down the enemy with her new drive and utilize her act parser zwei. Her OD will vary from Nu's as well, so please look forward to more.