Its also quite possible that if Neanderthals had survived to the present day that their physical appearance could have evolved even further, perhaps losing more muscle mass, as the conditions that led up to having a robust body is no longer present. It could have changed further with diet, and sedentary living with the advent of horticulture and agriculture.
In this TL, modern Neanderthals would be less robust than his ice age ancestors and probably would have evolved to look somewhat closer to present day Homo Sapien races. Depending on whatever part of the world Neanderthals find themselves in. For example, the branch of Neanderthals still existing in Manchuria or Tibet, those Neanderthals/Denisovans would look somewhat closer to Asiatic. For the sake of argument if they are still in Central Asia, then the Central Asian Neanderthals, also develop a pastoral nomadic culture, provided they domesticate the horse at about the same time as humans. If that is the case, then these Neanderthal nomads would inevitably come into conflict with the later Huns, Mongols and Chinese.
As stated earlier Europe would be their stronghold but even there would eventually be driven further north as the Arabs and Central Asians move in and drive them away.
View attachment 19074
Six distinct races of modern Homo Sapiens. Would the Neanderthals have evolved into separate
races as well resembling those of Homo Sapiens?