The SMBX Revived contest, while it was technically an official contest (more like CC5.5) only got 21 submissions, and I have a feeling this contest is going down the same way, and as of now we've got at least 13 submissions. The problem is that while this is an official contest, it can be put down to the bad timing, because around this point, a lot of members have to study for exams and thus don't have a lot of time to work on their levels. Sure, a second deadline extension could do the trick, this won't do anything because it just so happens to take it right into when exams are likely to hit. In my opinion, this should have been held off until June as at this point a lot of us will have time to work on our levels - me included if I wasn't a judge - and this was exactly why previous contests prior to CC7 were always held in summer.
However, we could see a submission rush today or tomorrow, so there's all to play for.