We've seen and heard many rumors about Threadripper not being continued. With the new Ryzen 3000 processors up-to 16 cores you really already have a bit of a Threadripper at hand you know. Also earlier this year TR suddenly was not listed on AMDs roadmap.

From a consumer point of view, really such many-core processors hardly make any sense. However, there are workloads very well suited for them. Also, AMD is battling Intel in the HEDT segment, and to trump them they just might release a Threadripper after all. 

All roads lead to Rome
See, for AMD it isn't hard to release a new 32 and/or 64 -core processor as they already have it. Much like previous generations, TR are in fact binned EPYC processors. With APIC Rome and it's spectacular 64 cores / 128 threads coming up, it could even be possible to support such a processor on X399 much like Ryzen 3000 on X470 for example. Then again, a new chipset was already speculated. Such a processor would get ZEN2 chipsets and 8 channels of memory, I can only call gargantuan. DigiTimes is not indicating that Threadripper based on ZEN2 might see the light in October, if true of course.

AMD's 16-core Ryzen 9 3950X processor is released first, of course, it is announced and will be available in September. 

3rd Gen Ryzen based Threadripper could be released in October - up-to 64 cores