Regarding the Internet governance model one thing seems to be certain, the ICANN seems to be working quite well as it is and the issues that exist are in the process of being dealt with. There is a possibility that the JPA might be extended, certainly some of the committee members want that but the international Internet community feels that the JPA should be let to expire as it has served it's purpose and it now impedes the ICANN evolve at it's own pace.
The consensus is that one of the most important things to assure are the transparency and the accountability of the ICANN providing that it does not affect the stability and security. The accountability can only be addressed by first defining the types of accountability (organizationally, public sphere, corporate and legal, participating community) and creating mechanisms for the accountability holders to impose sanctions for the accountable party.
How will the future model of Internet governance look? It will be an all stakeholders, open, inclusive, secure and stable process because it is already is that way and ICANN has shown an interest on bettering itself. An important development is the enlargement of the member states represented, beyond the 95% that are represented at this point.
Further away, the ICANN might benefit from a closer collaboration with IGF, while remaining an independent entity, providing a way of dealing with the accountability issues.
As a conclusion, improving on an already very good process as ICANN has proved it is can only provide better results.