For the fall/winter 2025 rotation they're going to plan with it being a Crew Dragon flight for now, subject to change depending on how Starliner's fixes go.
They also somewhat misleadingly say that NASA will also rely on Soyuz because of Starliner's unavailability, but that's just about the seat swap arrangement which helps to ensure that both the US and Russia can maintain a continuous presence if either side's vehicles have trouble. IIRC the agreement is expiring and NASA's interested in extending it, but Roscosmos hasn't agreed yet. I say misleading because I think they intended to extend that agreement regardless of Starliner's status.