Yep, I agree on all those points.
Taking a few of the bots on the Open Source page might be a good start for replacing the "influential bots" list. Maybe list more current/past competitions, but with less description of each than what's there now. For movement/targeting techniques, maybe instead of mentioning all those Robocode-specific terms, we could just mention some of the machine learning techniques that are widely used, like KNN, kernel density, multi-variate histograms (VCS), pattern matching, and neural networks.
I'm torn as to whether the wiki deserves its own special mention besides the link below. It is a pretty strong part of the online Robocode community and a resource for anyone doing Robocode, but I'm not sure that means it deserves more than just a link near the top of "See also" or "External links".
Agreed on all, unfortunately I am super busy again and don't have time to help with this.
I think there should be some sort of heading called "Community" or something like that, where you list the RoboWiki and the SourceForge forums as well as the dev groups.