I’ll make a wild guess that, besides the Denisovans (they showed up in my DNA as well, I was surprised to say the least) and the “Hobbits”, there will probably be further discoveries, that’s just a consequence of going out and looking for them. It’ll be great when, in what will probably be a very few years, the Erectus genomes start to emerge from their remains. Human variety emerged from isolation, which concentrated randomly inherited chromosomes, and give or take mutaions.
My Real Brother has gone all his life believing he was at least half-Portuguese, and when his DNA came back, he was full-on Irish with a smattering of other nationalities. It saved me the expense of having one done!
However, I would get it out and look at it except that I’m packing to move out of state and the DNA is packed with other papers. Somewhere... :o|