I don't know breh. Outside of Punk, who seems very unlikely to appear - and if he does, it would be a promo/segment at most - who could be considered a blockbuster announcement?
They have the New Japan roster at their disposal - if Okada is All In, anyone else can be - so the most "holy shyt" thing they could book for the US audience would be Omega vs Okada or a dream match between an indy dude (someone like Riddle) and a japanese talent. I don't see any wrestler getting people hype with Punk and Bryan being out of it... right?