I fear Media 10 won't be up to organising, running, or promoting this event succesfully. A Star Trek convention is a whole different ball game to putting on an The Ideal Home Exhibition.
They already seem not to have a clue about how to access cast members if the terrible rumours are true. I wouldn't give them any money up front. People had to wait 18 months to get their money back from Joiner after he twice cancelled Warp 10.
With shit like him continually advertising phantom conventions (he's just cancelled another one) and taking people's money before waiting months to give it back, is it any wonder even the die hard attendees in the UK have given up and don't trust anyone anymore?