I think a new ACToolkit would be great. As far as new features go, im really not sure what could be added. Maybe a grass color editor. I know there is a code and I dunno if ACToolkit alone can change the color, but it would be a cool addition to the program.
I would like to see, if possible, the date and time that the save was created on. If i don't play for awhile I forget when it actually was and have to guess to make sure I don't lose flowers, villagers, etc.. Then it would be easier then to have to go back in and add back what was lost if a day or more was skipped.
I think it would be cool to see Vash's Townview graphics implemented in AC_Toolkit also. A combination of the 2 possibly?
It is not greedy. It's showing support for the time and effort put into all of this.