AMD working on a 6-core Ryzen with 3D V-Cache for the AM4 socket
According to the leak from chi11eddog , AMD might be considering introducing a new AM4 CPU.

The 8-core Ryzen 7 5800X3D, which has just marked its lowest price since launch last year, might soon have a younger sibling. The leak alleges that a product code of 100-00001176 might belong to a 6-core Ryzen AM4 variant now being considered by AMD.
More importantly, this part is said to feature 3D V-Cache and the CPU name is reportedly Ryzen 5 5600X3D. Such part would feature 6 cores and 12 threads with L2 cache 1MB lower than 5800X3D (3MB). However, the L3 cache, which includes the 3D V-Cache would be of the same size on both parts at 96MB.
It is mentioned that the CPU clocks would be slightly lower than 5800X3D with base clock at 3.3 GHz and boost up to 4.4 GHz. Those are 100 MHz lower clocks than 5800X3D.
AMD Ryzen 5 5600X3D, Source: @g01d3nm4ng0
Since, the 8-core Ryzen 7 5800X3D is currently retailing at $289 , the 6-core part will certainly cost less. We might be looking at a great gaming CPU for the well-established AM4 platform. This part could enable new options for gamers on a budget. On the other hand, by providing more options, the AM5 platform might see less interest unless similar price adjustments are implemented.
Source: @g01d3nm4ng0