Sorry to keep you waiting for information. I have now been able to speak at length with the organiser and the event is definitely on. The delay in publicity etc has been because the funding that used to back this event is no longer available. The cost of the festival is being paid for by selling tickets to the after party.
The programme looks varied and interesting. You can see it for yourselves here. http://www.abslatin.co.uk/events.php
I plan to arrive as near to 1pm as I can make it. I am keen to hear the young singer Shakirita. I can't envisage the layout of the Arcadian Centre nor do I know where the stage will be so I can't tell you where our group will congregate. In previous years we tend to be spread about a bit anyway because many people bring family and friends who are not Spanish speakers themselves and form their own groups.
I will be there so please feel free to come and join me if you wish. That way we can create a bit of a base camp to make it easier for others to find us.However it is perhaps best to think of this as an un-hosted event and not be too put out if you are unable to find other members of the group.