For sure will be the 16th .
There´s been problems between last year´s organizing company (Evolution) and Challenge Group . They´ve broke the agreement and the case is on court .
Evolution settled the race for May 23rd and they are still accepting entries , which seems unbelivable because they won´t have any permissions to organize the race. Their website is http://www.challenge-barcelona.com/home/intro4.html
May 16th will held the Challenge race with all the permissions and supported by Challenge familiy (Felix et cia.) . Their website ishttp://www.challenge-barcelona.es/
. Ends with .es
So you got to be careful where you register , IT IS NOT THE SAME company.
Here in Spain there´s still the feeling that nothing is clear yet , so the triathletes have not signed in large amounts like last year , waiting for the case to be solved .
This is all i can say from a closest place .
IMO the race (May 16th) will be held but entry numbers will be lower due to this situation.