In a first (as far as MPG knows), Apple did not announce any new Macs at WWDC.
The lack of announcements may reflect current chipset limitations (such as the inability to drive a 5K external display with one cable), or similar inelegant limitations. Or it may reflect some convergence among Macs that for MPG brings both hope and unease about what chickens might come home to roost given Apple design fetishes, such as the distasteful prospect of a MacBook Pro with a single port similar to the MacBook, in the name of elegance but delivering the opposite.
The next likely announce/launch time is September, in time for school season and the holidays.
Which actually suits me (Lloyd) just fine: my old beater 2013 Apple MacBook Pro Retina is still going strong. Barring a slew of 'killer' new features*, buying another $3K laptop and a $5K Mac Pro is an unappealing prospect. So in that regard (cost), MPG is more than happy to see the hardware changeover to Thunderbolt 3 pushed off until (one hopes) it can be done right and proper.
* What I want in a MacBook Pro: 32GB memory option, 4 Thunderbolt 3 ports, 2TB SSD option, wide gamut P3 display.