To see her KOF XIV Climax move (Shiranui-Ryuu Ougi) was surprising, since they kept her signature special move Chou Hisatsu Shinobi Bachi as her Break Blow. I assume, then, that her Climax in KOF XIV is an air grab in DOA6. Maybe something similar to Hayabusa's Izuna Drop, what is really cool in my opinion.
I wonder how much they changed her gameplay compared to DOA5LR... If SNK wanted a more KOF XIV flavour, that could mean a lot of changes in her moves and combos. We will see.
As far I can tell, the new things we can see in her trailer are:
-she got her Kof XIV Climax move and it is used by canceling her air dive Musasabi no Mai into it, what means a full air string.
-she can cancel now 3P+K into her jump 9P (I see Nyotengu style here)
-she gained a new air move, Ukihane (knee drops. So, more tools in air again... and Ukihane ends with a Ground Bounce)
-Hakuro no Mai (her HP Hold) is now integrated in her Fatal Rush animation. I wonder if she will have a new HP Hold or it will be Hakuro no Mai aswell even if it looks too similar to her FR.
-New close hit. This one is quite surprising since this is a very rare move Mai only had in two games (KOF MI2 and FF Wild Ambition). It is a tribute to her boyfriend's signature move, Kuuha Dan.
(Side note: I'm going to miss Mai's cliffhangers, they were just so great. I wish they were added somehow to her movelist but I guess they won't.)