This is a good question. The risk of keloid or hypertrophic scarring with a facelift is very small. Keloids are genetically based, and if you have developed keloids in the past, then your risk increases. Individuals that are hyper-pigmented have a higher risk of keloid formation.
Thank you for your question, keloid scarring with any surgery is a risk. The risk is higher in patients with very fair pigment skin or dark pigment skin. Keloid scarring is genetic, therefore is anyone in your family are prone, this is a good indication. You could have a test excision to see how you heal, before going ahead with a facelift. Please make sure you find a reputable and qualified plastic surgeon who can assess you properly to give you a realistic idea of what outcome you can achieve. All The Best