It will come with 10 copies of Dodge, one per character.
Dodge replaces Dash wholesale, for new characters as well as old. There are some minor balance issues (Cesar, mostly, and Demitras is sad) but they're not particularly severe - recommendation is to use Dodge for all characters.
Haven't got to play in a while, but I have some dodge bases that came with Mothers Day Adjenna and a Tatsumi promo. How does Marmalee fair with dodge? I know she likes to clock and seems like a nerf to her. Also curious how she fairs with the new timer system.