Realistically, certain fields of sciences are almost useless until we find technical means to get data.

Paleontology is one of them. We just started to get ancient DNA and it's becoming cheaper and cheaper to get results. Like Geology before plate tectonics, we were going with best guesses about the very rare and often in majority incompleted remains of hominid fossils.

Add the politics and we are just agreeing to keep the peace with various small groups like the Native Americans. That's what Clovis 1st has always been about and why the Solutrean hypothesis has been ridiculed so much. That's why the CHinese will never talk about the hundreds of snow white skin and ginger hairs mummies lying around on their lands.

Expect great revelations about our extended human family as we get data and expertise to interpret it. They had differnt biology and brain functions, stuff fossilized bones, basicly rocks, can't tell much about.