If current speculation holds true, Drago Range being based on Raphael will give a larger L3, which is important for many games. That leads me to believe that there may be at least 8 core Dragon Range CPUs as they would still have a notable performance benefit over a half-L3 phoenix part. As for when they will actually hit the market? Well, going by AMD's recent track record, they will introduce the two products at CES, then, about 6 months later, a handful of OEM designs for the major business markets will start to appear as well as a small number of super-high end parts from one or two laptop makers that will be in extremely limited volume at astronomical prices. Then, about 9 months later, you'll start to see mainstream notebook parts that were announced in the spring and summer to become available in the normal channels. It'll be about a year from they are announced for products with reasonable pricing for their market segments to become widely available on the market.
As for RDNA3 on Phoenix, please note that, from what we're seeing from driver commits on linux, RDNA3 as it exists on Phoenix will be notably different from the dGPU version, and seems to be more of RDNA2 with expanded and restructured caches and a couple of functional unit tweaks. This makes some sense as it will exist in a highly bandwidth constrained environment, won't have sufficient transistor budget to make some features worth implementing, and will likely be more focused on providing better performance for FSR/XeSS so that it can provide good performance at 1080p/1440p.