Well it couldn't hurt :P But honestly the development certainly hasn't been as a result of donation funding, if that were the case there wouldnt be much to Toaster at all :P So features aren't really 'bought' so to speak.
And I can't gaurntee any particular feature or when/if it comes, because it depends totally on when I get time and how easy it is to implement. Ive been meaning to put that feature in since 0.5 days. Its difficult because there is no reliable way to the accurate length of a song, sometimes Winamp reports inaccurate lengths, which can throw out the calculations.
I have heaps of updates scheduled for Toaster, which also include the ability to have the time elapsed displayed and have it update every second. The code to do this would also complement keeping track of when a song is about to finish, so I will add it in then.
I also have to be careful about overloading it with configuration preferences. Its already too overloaded, and the fact that this feature wouldn't work with shuffle on would make Toaster even more confusing.
I plan on dropping all the skin stuff and have it kept in separate 'skin package' settings which will allow packaged skins which have all the color and border settings etc, as well as tiling information for future versions, and just have the formatting and display options in the GUI.
Currently however, I am devoting time I have spare to getting ActiveWinamp finished up for a new release. After that I will work on another small point release of Toaster and will see if I can work that feature in somehow.
Note that with the Toaster API, its actually possible to write a plugin that does this quite easily.