https://wccftech.com/16-inch-macbook-pro-release-date-q3-2019-trendforce/

Report after report has been piling up regarding an ‘earlier than expected’ 16-inch MacBook Pro release date, with the latest one pointing towards a third-quarter launch. The Taiwanese market intelligence provider TrendForce recently published a report regarding notebook sales, according to which laptop shipments reached 41.5 million units in the second quarter, a year-over-year increase of 12.1 percent. This was despite concerns regarding the U.S-China spat and supply-side uncertainties. The company also expects various vendors, including Apple, of course, to release new products in the July-September period.

If you want a count, this is the fifth credible source claiming that the 16-inch MacBook Pro will be released in fall, although there is some divide over the exact date, with some industry watchers saying it will arrive in October, not September.