15. The system of claim 13 , wherein to collate the intent determination responses, the central device is further configured to: receive the intent determination responses from the one or more secondary devices in an interleaved manner; and arbitrate among the interleaved intent determination responses received from the one or more secondary devices and the determined preliminary intent to generate the intent hypothesis associated with the multi-modal natural language input.
15. The system of claim 13 , wherein to collate the intent determination responses, the central device is further configured to: receive the intent determination responses from the one or more secondary devices in an interleaved manner; and arbitrate among the interleaved intent determination responses received from the one or more secondary devices and the determined preliminary intent to generate the intent hypothesis associated with the multi-modal natural language input. 18. The system of claim 15 , wherein to collate the intent determination responses, the central device is further configured to terminate receiving the interleaved intent determination responses in response to a predetermined amount of time having lapsed, a predetermined amount of resources having been consumed, or one or more of the received interleaved intent determination responses meeting or exceeding an acceptable confidence level.