This was take a few minutes ago from the official Dead or Alive facebook page:
"Can't confirm any dates yet but just to let you know that we're looking into updating DOA5'S online functions and fix some of the known issues reported to date.
We're looking into working on prioritized and quick fix issues making them available as an update ASAP. Issues requiring additional attention and time will be considered at a later stage.
Also as our appreciation to everyone who owns DOA5, we're planning a free DLC so be sure to come back for the latest!"
The post can be found here: https://www.facebook.com/deadoralivegame
I like how they are actually reacting to players' concerns and updating us on the problems they are aware of. I hope they do fix these issues.