I honestly believe that BBS's will make a comeback in a few years...
Why?
Corporatization and Capitalism is taking over the internet and changing the standard paradigm from "putting information out there for everyone for free" to "I put it out there, now pay me to see it". The fact that the government is now trying to make the internet into a kinder, gentler place is just fucking thigs up even more.
Internet2 most likely won't solve this problem, but enough pissed-off intelligent sysops that are careful who they let in to their own network will.