The text below is quoted from another source. Nameless.

“I work at an Apple Premium Reseller, and I just saw my roster
for June the other day….now take this with a grain of salt, but I’m
pretty confident about it…

I usually only work Thursday and Friday nights, But on the weekend of
19th June through to 22nd June, EVERYONE in the store is rostered on
that weekend, Saturday and Sunday. The reason I mention this is
because the Sydney Morning Herald newspaper said the Apple Sydney
Store is opening on the 19th June at 6pm, and this would indicate to
me an iPhone launch perhaps? It took me a while to realise, but that’s
most likely why every staff member in my store is rostered on that
weekend of the 21st and 22nd as it will be “busy”, I was told by the
manager by not told why.”

Of course, this doesn’t confirm anything, but does sound kind of promising