Suzuki is under contract for next year, with an $8.5 MM option for the following year.
Flores is likely to be traded in the offseason. Conceivably, they could retain him and figure he's only going to be $1 MM or so. That is kind of a cheap insurance policy in case Ramos is not ready to go at the start of the year. Still, if there is a team that would give the Nats something for Flo, then they pull the trigger on the deal and go with Leon / Solano as the insurance policies for Ramos.