PW Comics World: More To Come

A preview of the 50th San Diego Comic-Con and its panels, events and history; 'Mad' magazine ends; 'The Walking Dead' comics series by Robert Kirkman comes to an end after 16 years; Harper Collins opens Harper Alley, a new graphic novel imprint; and comics creator Sina Grace charges homophobic editorial meddling on his 'Iceman' comic at Marvel.