As long as reiserfs is maintained and runs well, I wouldn't be too much concerned about its future development. I mean, the ext2 system I install grub on is very similar to the ext2 i used back in 1994, I've got the impression not that much has happened in the way of development, but I may be wrong.

I stilll keep looking for the compelling reasons to use reiserfs, though. And I think it may be very little, making fs choice a big issue for everyday use is not very productive in my view.