Khajiit has wares if you have coin. Humans have made leaps in intelligence that have allowed us to obtain sentience. Some have proposed the hypothesis that a mass freezing 70 thousand years prior meant that only the more intelligent humans could survive as they were forced to find new ways of keeping warm and finding food.
In a social group, intelligence was required to have many friends within the group. As time went on, intelligence itself became a desireable trait in a mate that meant only the more intelligent could find mates, meaning that intelligence became self-perpetuating without the need for natural disasters to weed out the less intelligent.
The big breakthrough was spirituality and wondering the origins of the world we lived in, evident by the cave drawings and the basic formings of religion, which shortly thereafter resulted in culture, art, pottery, and the beginnings of civilization.
Logically therefore, for felines to evolve like us, they'd have to live a very similar existence, and felines as of now are somewhat genetically inflexible. Cheetahs are very similar genetically, with very few differences, but this is mostly due to the fact that genetic mutations are likely going to produce a less-effective sprinter, which is one of the most important traits of a cheetah for survival. Something must occur that dramatically changes how felines hunt and survive.
My idea is that some natural disaster occurs that makes food scarce and the only food available is difficult to impossible to catch on one's own, involving flanking and intelligent tactics of this sort. Perhaps another species evolves alongside the felines which too develops intelligence (though not necessarily sentience, but likely herbivores), meaning that for the felines to catch their prey, they too need to grow smarter (think velociraptors of Jurassic Park). Though this herbivore counterpart would have to be one of the few surviving animals, or otherwise rather than grow smarter, felines would simply hunt things it can catch instead.
This would oblige felines to stay grouped together and therefore socialize. Perhaps this natural disaster too would affect temperature requiring the more intelligent felines to skin their prey and use them for protection against the cold (nuclear winter would have the same effect of blocking out the sun that a volcanic explosion would). This too would encourage their paws to evolve into something they can use more easily for both hunting and for tools, though I'm guessing given enough time, the need for claws would eventually subside in favor for hands rather than paws for the most part.
As time passes, their brains would grow bigger, and the necessity for speed would be discarded in favor for smarter tactics, as simple speed would not be sufficient to catch their prey. The increased brain size would allow them to walk on hind legs, though they may still favor all-fours when speed is important.
Hope that helps!