Yes, usually in April. It use to come out about a week after the draft. But that was also when the draft was held earlier in April. Seems it has been getting later in April the past several years. I can't remember when it changed, maybe 6 or 7 years ago, it started coming out more early, and became earlier each year. Usaully after the NCAA tournament. But now they realease the first weeks and some key prime time games first. Then follow within a week with the rest of the schedule.
Don't know why, but I guess they need to make a big production out of it now.