Do we know if another APU will be released by AMD?
AMD hasn't announced anything after the R5 2400G. The next APUs, code name Gray Hawk, are supposed to feature 7nm Zen 2 processor cores and have Navi based graphics, and launch in 2019, but there's no "official" timetable, and official details on Navi are nonexistant.
Is it gonna be better than the ryzen 5 2400 g?
Yes, but it's still going to be Socket AM4.
serie ryzen 2 at 12 nm will come first , then we will get the 7nm . I was reading about this today and they ( amd) predict a 10% speed improvement at every step. This is the normal way to do it for Cpu foundries. So no need to wait for the 2 series, the price already went down right now, so you can just buy a faster cpu than a few weeks ago for the same price.
No, Zen Plus is 12nm and launching next month, Zen 2 is 7nm and launching at the end of the year or early next year.
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