Well, personally I hope we get avatars and sigs back. At the very least avatars. I've posted on boards where people use avatars, and the difference between boards like that and boards with no images at all are pretty big. On boards with avatars, I can easily recognize a couple hundred of the posters just by looking at their images. But here, it's like the majority of posters are all a large, faceless blob. You might as well all be the same person, for the difference it makes to me, as I can't tell you all apart.
That's the good thing about avatars. It's like the person posting has a "face". You've got a mental picture to associate the post with, and as such, you can more readily distinguish one poster from another. And of course, if you don't like to see images, then you can always modify your profile, in "Edit Options", I think it's called, where it says:
Show user's signatures in their posts?
yes no
Show user's avatar in their posts?
yes no
So if you don't want to see avatars and sigs then just click on "no". But personally, I'd like to see avatars and/or sigs back as soon as possible. (Imagewise, though, I prefer avatars, as they go ALONGSIDE your post, rather than UNDER it. Which means that the thread's shorter, and you don't have to hit scroll down to much. You can always restrict the sig to just text, leaving the avatar for any images people want to use.)