The amounts of traffic you'll receive depends on a multitude of factors. Is your gallery good? Is the reviewer in a good mood? Are you using new content? Are you on a paid host? Are you submitting to the right categories? Using the correct amount of content to be listed? Are you a partner at the TGPs you submit to?
Taking all these factors into consideration I think it's fair to say that any given submission will bring you anywhere from 5k-200k
unique hits. Sad but true. But if you're persistent and follow the rules, eventually you'll start seeing your efforts pay off... Just make sure you use a dynamically updated tool when auto-submitting and you're on the safe side
