Details are here: http://ascendio2012.dreamwidth.org/1041.html
The con hotel is the Loews Portofino Bay at Universal, home of the Harry Potter theme park.
The con is July 12-15, 2012 in Orlando, FL.
In fact, join the Ascendio Dreamwidth community here: ascendio2012
Heidi says online registration for the con is already almost at 200 people — and the first 200 to register get the $25 off “early bird” discount. So to register for the con visit here: http://hp2012.org/?page_id=131
There are single-day passes as well as full packages and the “Merlin’s Circle” packages. Details are forthcoming later about Night of A Thousand Wizards (inside theme park) and other events to add on, I believe.