I am not exactly sure what you mean, but there will definitely be work required to fix the bug. Sometimes reporting the bug upstream is enough, other times, we have to do it ourselves. Really, I hope that once we show that what we are trying to achieve is worthwhile, more people will join in. A lot of work has been done by many people over the years, without this work Maemo Leste would not have been possible. Some of these people are still around, still do kernel work, or other work. I believe that with the right focus, we can get these people to (re)join the effort, and have more (wo)manpower.

That depends on demand. Many application might just need recompilation, so then there is just a bit of packaging work involved. Others might need some fixes, or parts rewritten.

You won't be able to take existing debs and just run them, but that is by design. Getting stuff from extras in will be, just like everything else, based on demand, time, and community effort.