It is not a good idea to try to keep foods hot longer than 2 hours. Reheating a whole turkey is not recommended. The turkey will be safer and taste better if you:
Shingle 3/8" thick breast slices in oven proof pan or spread out whole legs or wings in a single layer in oven proof pan; sprinkle with juices or water; and cover with foil. Heat in preheated 350° oven for 35-45 minutes or until heated through to 165° F. Larger whole parts may take additional time.
Shingle 3/8" thick breast slices in microwave safe pan or spread out whole legs or wings in a single layer in microwave safe pan; sprinkle with juices or water; and cover with plastic wrap. Rotate dish so it heats evenly. Follow oven manufacturer's cooking guide for best results. In general, for a 600-700 watt oven, heat on high setting (100%) for several minutes (adjust time according to amount being heated), until heated through to 165° F. Use the following approximate time guidelines: for 2 slices, heat 1 to 1.5 minutes, 4 slices, heat 2 to 2.5 minutes and for 10 slices, heat 8 to 10 minutes.