Next Steps:

1. Update Wikipedia entries for Online-Nations.net (done)
2. Start spreading the news that Online-Nations.net is online (Started)
3. See what happens and whether there is online community interest to expand Online-Nations.net (Started)
All following steps depend on whether there is enough interest to participate in taking Online-Nations.net to the next level!
4. Implement a basic community member administration + forum + wiki
5. Implement a basic direct democratic decision system
Decide together where we want to go from there.

Evolution Steps:

Evolution steps describe a potential future development of Online-Nations.net. We tried to give a gut-feeling guess regarding the probability for each individual step to happen.
Online-Nations.net gets known and a community forms: the internet is huge, many great and many more not so great projects come and go without ever being noticed. The chances that Online-Nations.net gets noticed is estimated with ~3%. If we manage to get linked from sites like wikinomics.org and if our wikipedia-entry remains active, chances increase to 10% in the first 6 months of operation.
Participation of a "critical mass" of individuals (>100 persons): always depending on a successful prior step, chances that enough knowledgeable and motivated people aggregate on this site to jointly develop a basic member administration, forum, and wiki are estimated ~7%.
Growing Community - first "nations" form: using the
Optional: requests for protected areas become imminent if the requirement for censorship (regardless of which flag it sails under, whether "political correctness" or "religious believe" or "conservative values" or "cultural identity" or whatever) is becoming relevant - if community members are starting to try and limit the freedom in the common area to push in their own value systems requirements - then it's the time to provide protected areas for these individuals and groups, ensuring directed communication where the groups can define, what incoming info they allow and what they want to censor (according to their value system).
Start of the "utopian" vision of Online-Nations.net evolution
Online-Nations.net goes networking: there are several interesting massive multi user communities available in the internet. If they would adopt Online-Nations.net as their platform for political representation online, this concept would have a chance to become a significant and relevant part of global online culture. Probability of that happening: unfortunately the chances are rather slim, but it's worth the try.
Online-Nations.net goes national: online nations form and start providing administrative services.
Online-Nations.net goes real-world: utopia continues - imagine a commonwealth of online nations on the Online-Nations.net platform networking with other platforms (commercial, educational, infotainment, ...) and hosting a significant amount of individuals across the globe (several millions of citizens). Online-Nations.net could aspire to get recognized by the UN as a legal online commonwealth of nations.
Alternatively one already existing nation / state with a very progressive government could decide to "host" online nations citizens and provides "passports" valid outside of the online community. In the first step online nations citizens would have "twin citizenships".
Online-Nations.net goes real-world 2: with enough online citizens living in the real world in one (democratic) state these could form a party and adopt as a party program to replace the existing governmental system by a less bureaucratin online alternative.
This will surely not be realizable without a (somewhat risky) transition periode of 5 to 15 years, depending on the depth of the current government systems involvement in every aspect of everyday life.
Real world goes Online-Nations.net: real states/nations could start providing their governmental services to citizens outside their original countries. A growth opportunity for successful real world nations.
Conclusion: the Online-Nations.net concept has the potential to create something new and take politics to a next level, facilitating socio-economic evolution by eliminating existing power structures which are blocking this change. It could also suffer the fate of many an innovative idea and go mostly unnoticed by history. What do you want it to be?