For me Aragon V1 was just the Aragon Client with all the Apps. V2 would be Aragon Govern, Voice and the Client in one user interface. I imagine V2 like a social network for people to interact with other people, create and join DAOs, vote/create/comment on proposals and explore/follow DAOs. Each user can be a member (token holder) of many daos. Each DAO has its own profile similar to facebook where you can create groups or organisation sites.
Perhaps Aave with their idea to create a social network protocol on ethereum can help to create Aragon V2.