If you search Google for sites in a similar business check how many results you get back. I get 480,000,000 results though obviously many are pages within sites and mirrors etc. So lets take just 1% of those = 4,800,000. Now lets say 1% of those have submitted to DMOZ = 48,000. Lets say we have managed to list half of those. What's left? That's about the number of sites waiting for someone to review them. Nevertheless the site could be reviewed tomorrow. On the other hand, unless your site stands head and shoulders above the rest, really stands out from the 25,000 odd and rising daily you are competing for an editors time with, is it worth holding your breath?
Having learned the site has been received, all you can do now is to wait for that review, which could be anytime - 2 minutes to 2 years, maybe 10 years, there is no way of predicting. In the meantime check the category from time to time to see if it is listed. Thanks.
Except maybe there is one thing. If you offered a local service and we could clearly see on the site that you did - maybe your full address - you might submit to the Regional branch locality category for consideration.