I think a small comment like 'there will be a few surprises' suggests small pieces of themeing or effects that aren't very marketable, but will add a magical factor to the ride. I think anyone speculating on a grand scale will be disappointed. It's inappropriate to be criticising these potential surprises before they have even been released on the grounds that they will be underwhelming, because they (whatever form 'they' may take) should be seen as something additional and bonus. The main selling feature and main 'secret' has always been the number of inversions. I am still looking forward to the 'surprises' Wardley is promising, but only in as much as I'm looking forward to the ride experience as a whole. I'm not expecting there to be anything that cannot be put in a press release, essentially.