I just updated the SMW roadmap with my own TODOs and made some additions such as adding a contact person per task.
This is in part as preparation for the upcoming Google Summer of Code.
If you have plans yourself for making changes to SMW core or have feature suggestions for either SMW or extensions, please list them, together with all the info useful for people that might want to implement them or help out in some way.
Jeroen De Dauw
Don't panic. Don't be evil.