at the moment, there are over 4000 cars registered from my knowledge ( dont know how many will come though, expected is above 2000), they have planned this cruise for the past 3 years, so dont know how many more 100's of cars will come. i was thinking of joining, but there will be a massive traffic jam!
alot of clubs and forums will be coming, lots of JDM cars, sex spec's, eurospec's etc. if i get time i will be joining