He appears again later in the The Breach as a Vanguard Member and one of the numerous refugees fleeing over the Northern Shiverpeaks into Kryta to escape the Charr.
To compensate for this, players acquire a Devourer Egg for him, which he plans to raise as a new pet. His bull Bill is killed by the player as part of the A Mesmer's Burden quest due to it harassing townspeople. Old Mac is a farmer, which you meet first in pre-Searing Ascalon.