Yes, and this is because of a benchmarking project for all Jesuit schools nationwide.
Under the project, every single student from all Jesuit schools (not just the Ateneos) from every corner of the Philippines down to Mindanao are required to take the ACET this year. The obvious outcome is, of course, more takers for the ACET, and we could probably see that number jump to about 25,000+ this year, not including the annual rise in applicants to colleges due to the increasing high school population.
The good news is that not all of these takers are applicants and some could just be taking it because it is required, although there is bound to be an increase in applicants that goes with this for various reasons, one of which is that parents are more likely to give it a shot if their children are taking the test anyways.
In any case, prepare well! The ACET is definitely not the easiest test to pass, but it is passable with a bit of hard work.
Just check out our ACET and old UPCAT practice test PDF files in the links below.
Also, since the material covered is basically the same, you could also use these as practice for the DLSUCET and the USTET if you wish.