In Pittsburgh, “yinz” is short for “you’uns”. As in “Are yinz going to Worlds in Montreal”
In Australia the equivalent is 'youse'. Usually without an auxiliary verb attached, so here your sentence would be, 'Youse gunna Worlds in Montreal?' Even urban Aussies veer a lot closer to Strine* than they like to think a lot of the time!
And that makes me think of another habit we have: elisions. 'Libry' for library, 'Wensdy' for Wednesday, 'Febry' for February, etc. Anyone else have something similar?
*Stereotypical 'Outback Aussie' speech, think Crocodile Dundee, 'Emma Chizzit?' for 'how much is it?' etc.