Wait for Better Processors and Graphics
Wait if you want a MacBook Pro that is better at processing video and if you need a machine that is faster at compressing or decompressing files. It's also a good idea to wait if you are looking at the 13-inch MacBook Pro that uses a built-in graphics card.
The current MacBook Pro models use the 9th Generation Intel Core i processors, including the 16-inch MacBook Pro. When the 2020 MacBook Pro arrives it will likely use the 10th generation Intel Core i processors that excel at several specific tasks.
A report in February points to the 10th Gen Intel Core i Ice Lake processors and one comparison outlines a 12% CPU boost and a 30% faster GPU. That's a significant upgrade to look forward to.
While the average day to day tasks on your computer will likely feel about the same as the current models, the 2020 MacBook Pro should process video faster and do a better job of quickly compressing and decompressing files.
The graphics card that comes with these processors already shows at least a 50% boost in real-world graphics performance according to Macworld. This also means that you will be able to use these with the new Pro Display XDR and it should support up to three 4K displays at 120hz, two 5K displays at 60hz or a single 8K display at 30 Hz.