I believe its 10 cadets this time, with more classes planned for the future.
I've just read all posts on this topic. Regardless of your background or experience, apply, and apply with a positive attitude. The current pilot body are a diverse group and a fair representation of society. Yes, there are brothers, sisters, sons and daughters of pilots, but they are in the minority, and they're flying the shamrock on merit alone.
Negativity is septic. You've every chance of being the next cadet regardless of age, sex, qualifications etc.
Best of luck to all.