This will pretty much depend on the timings of your next course. There may be a gap in training, during which you would likely be able to take some annual leave to visit back home. Ultimately, these decisions will be made by someone in the organization of the Director of Maritime Training and Education (DMTE). I very highly suggest that you do not attempt contacting these people on your own. If you need to know things like which courses you'll be loaded upon, the way to go about this is via your chain of command while on course at CFLRS.
But keep in mind that these things may change, with short notice. For example, 4 days before the end of my BOTC course's graduation, while doing grad parade practice, we were informed that those NTOs amongst us would be staying in St-Jean for our french training, vice flying out to Halifax on Friday as anticipated. Needless to say, this threw a monkey wrench into the plans for more than a few people.
The moral of the story is, don't book a flight unless you have a signed leave pass in hand
