If you go to jw.org, you can download the program for 2019 Convention.
What I notice is that nowadays there is no meeting for ones wishing to serve at Bethel or for those interested in Gilead missionary school. Rather, there is just a meeting for those interested in 'The School for Kingdom Evangelizers'.
Two things strike me about this. First, although there was once a big play on Bethel and Gilead being held out as career options, this is now just about dead and buried. Bethels have been downsized, and the society just wants to cherry pick what skills they need, often on a temporary basis. Gilead is not a school for the average pioneer to aspire to, its a school to train died in wool company men who are likely to be needed as troubleshooter and enforcers for the organization at some point.
It's all really cheapskate. The Society has no commitment, financially or otherwise to training and mentoring individuals for the work it needs doing. Sure, 'The School for Kingdom Evangelizers' sounds good on paper but think about it. You have to have struggled on for years as a pioneer, totally funding yourself. If you get invited, you are expected to make your own way there, and stay with brothers and sisters in the local congregation - at the their costs. Then suppose your are assigned to somewhere there is a 'need', are there any re-location costs? I think not.
Still young ones are encouraged not to pursue 'worldly' careers but rather take up the full time service. Great choice, an occupation leading nowhere, with nothing to show in 40 years time.