Will my cat get along with a new kitten?

Me and my mom are thinking of adopting a kitten, we did it before and my cat would hiss if the kitten got close and run away, but she began to warm up to the kitten and stopped hissing when the kitten was near. Unfortunately the kitten died, we're not really sure why. But that was about 3 years ago. We're thinking of getting another kitten. My cat is a domestic shorthair. She doesn't like it when there are a lot of people she doesn't know at our house. But if one or two people come she stays, although she doesn't like it when they pet her. She's not really friendly, but to people she knows she can be really affectionate. My only worry is that getting another kitten will change her personality or something. So can I have some tips on having my cat adjust to a new kitten? Also, I know getting the kitten's claws removed is very painful for them. The only reason my cat's claws were removed was because she always scratched me on accident and ripped up the furniture. But I don't want the kitten to scratch my cat.. How can I prevent that?