Complex sentence: Two concepts for a supposed sequel were conceived, though both projects were eventually canceled due to unforeseen problems during development and were later reworked into two separate Dark Horse Comics series by Lee Marrs and Elaine Lee.
Split into simpler sentences: Two concepts for a supposed sequel were conceived, but both projects were eventually canceled due to unforeseen problems during development. They were later reworked into two separate Dark Horse Comics series by Lee Marrs and Elaine Lee.