The notes in note duel are kind 1, the DLC oracle events are not, you can check the WIP spec here: 

https://github.com/nostr-protocol/nips/pull/919

Do you see a need for segregated relays that provide these notes?

No, we are just broadcasting them on standard relays

bitcoin

Announcing Superposition and Note Duel, our first two DLC experiments

benthecarman

The notes in note duel are kind 1, the DLC oracle events are not, you can check the WIP spec here: https://github.com/nostr-protocol/nips/pull/919

> Do you see a need for segregated relays that provide these notes?

No, we are just broadcasting them on standard relays