First of all, congratulations!
Mate of mine got through the last time, and he's starting in Sept on the 744
He's got about 4,500 TT with 1,000 PIC 738. No prizes for guessing his current airline
You'll be pleased to hear that it's pretty 'old school' interview, just a get to know YOU. Are you the sort of guy/girl we'd like to sit alongside for 14 hours etc. Believe it's with HR and a Pilot.
Best of luck!