El Nino does typically lower chances of tropical activity in the Atlantic Basin, however, if there is to be any development this season with an El Nino present I would look to homebrew stuff in the Gulf. Nothing major, but I can see a few tropical storms or maybe a weak hurricane spinning up there.
Also correct me if I'm wrong, but I think either an El Nino was developing or already in progress during the 2004 and 2005 hurricane season wasn't it? If so, both of those seasons were very active and record breaking. So an El Nina or La Nina doesn't 100% determine how bad the season will overall be. Heck, look at the past 5 years where a La Nina was around and we couldn't get crap to form because of a barrage of dry air and wind shear stagnating the Atlantic Basin.
No, actually a La Nina typically enhances tropical activity in the Atlantic Basin, there was neither La Nina, nor El Nino last year. There was a La Nina in 2010-2011 and a weaker one in 2012. As for the the 2004 and 2005 hurricane seasons, a weak La Nina was in progress for 2005. There was indeed an El Nino during the 2004 season, but it was weak and not strong enough to limit the activity in the Atlantic.