Section 8. The full court shall, as soon as may be after the decision of the questions submitted to it, make and enter a proper order, direction or judgment for the further disposition of the case, or cause a rescript, containing a brief statement of the grounds and reasons of the decision, to be filed therein; it may remand the record to the trial court to carry such judgment into effect, or instead thereof, the full court may order a new trial or further proceedings at the bar of the supreme judicial court, or order sentence to be awarded or execution issued in said court.