I initially thought the AdoredTV predictions were beyond ridiculous. Now ... they might not be so implausible after all.
Consider:
7nm "halves the power consumption at the same performance level". Given that the Ryzen 3300G has clocks listed below the 2600 (3.0/3.8 vs 3.4/3.9), and the same number of cores & threads, the CPU portion should consume half the 65W that the 2600 does. That means it has half its power budget left for the GPU portion. The graphics specs are less plausible but not impossible - the Ryzen 2400G has 4 core/8 threads in 65W; the 3300G would have less than 2X the amount of CPU and GPU, and lower clocks, so the numbers still work.
The price though... that seems impossibly good. Makes sense in that too high a price might scare people off, but they would have to liquidate their entire inventory of 2200G & 2400G before even announcing the 3000's at those prices, because no-one's going to buy a 2400G at more than $99 after they officially announce the 3300G at $129...