No, “48 New Multiple Sclerosis Genetic Variants Discovered” does necessarily mean that the likelihood for people to get Multiple Sclerosis (MS) is necessarily higher than previously thought.
The study involved  found that with “new findings, there are now 110 genetic variants associated with MS. Although each of these variants individually confers only a very small risk of developing multiple sclerosis, collectively they explain approximately 20 percent of the genetic component of the disease.”
Nice, but why should we care?
MS is a very complex disease, so the hope is to match new MS drugs with the genetical make up of the particular MS form of a the patient.
Keep in mind the the 110 variants are only 20% of the expected total MS variant, so we still have ways to go!