Warhammer Event question - USA

Preface: 1.5 years into the HH books and 9 months into the models I love 30k. I live an hour from Atlanta.

Question: I want to attend the Atlanta Warhammer Open event in Nov. All of my GW emails talk about it a huge 40k event and tourney. Is it a waste to go if I am looking for 30k content? I did not find any helpful information online about what other HH stuff there would be.

I know I will find awesome cosplay and it will be fun being amongst the scene but will it be 95% 40k content? Help calm my expectations!