Recruiting keep the interview locations etc pretty close to their chest....... obviously it can be commercially sensitive but also, its better not to promise too much in this industry! All sorts of events can (and do) upset the apple cart.
Short answer........I dont know!
BUT....... from 'history' they tend to get to most continents twice a year.....take from that what you will.......but it really depends on where the 'quality' candidates are.