The Supreme Court accepted six new cases and placed them on expedited review so that they can be heard in the April sitting. You can find the orders list here.
The Court can hear, on average, 12 cases per sitting (2 cases per day over 6 days.) As it currently stands, the Court has accepted 19 cases to be heard between the March and April sitting. The Court will meet for conference again next Friday and may opt to fill the April sitting. If they accept several cases at that sitting, announce them on Friday, and put them on an expedited schedule, that would be a strong indication that the Court would like to fill the April calender. Regardless, the Court will likely announce its April calender in early-February.