Somewhat easier to move vehicles from the Brighton fleet to Crawley given Metrobus and now Southdown are just an extension of the Brighton operation.If we're getting into hypotheticals I'd imagine they'll just get some ex-London stuff in whenever it's available, there are still 12 DOEs in service in London plus many E400s around 12-14 years old.
What was the last vehicle to move from the London operations to Crawley?