Conversation so far:
Was there migration in the later vedic period
The Vedas were composed by speakers of an Old Indo-Aryan language who had migrated into the northwestern regions of the Indian subcontinent early in this period.
What kind of things did the Vedic culture grow?
The Indo-Aryans cultivated wheat, rice and barley in the Vedic period.
How did the Vedic society change by the end of the Vedic period?
The end of the Vedic period is marked by linguistic, cultural and political changes

Question: did they form a society
Self-contained rewrite: did the Vedic Culture form a society after commerce and travel flourished, even regions separated by large distances became easy to access?