There will be 2nd round as I understand from their website. # rounds of IEO its sounds like crazy. If big exchanges would have had interest to project than they had listed IEO on own exchange. But in fact they have IEO on this 2 unknown exchanges.
2nd and 3rd rounds are already planned. I am not actually aware of shortex but p2pb2b is quite known it just that it has a bad reputation but whatever it is as long as the project is really good of course, this will be a success. One reason that I can see why this good project is not listed on bigger ones cause there are a lot of factors and as for me, it can be the listing fee. Maybe, they are just going to use it for development instead of paying it to exchange/s