I'd not mentioned a specific topic because I find it hard to answer. To be honest I can be interested, or not, in all the topics you suggested.
I'm not trying to be difficult (honestly!) I just find that some things catch my imagination regardless of the broader topic that they fall under. That was why I'd been looking for a list of options (either of new ideas or unmaintained options) until I had an 'Aha!' moment.
As far as working with a team or not, I'd be happy with either, in fact as I'm looking at this as much for learning as anything else a team may be helpful, then again I am also used to learning by myself. So, yeah, either :)