Complex sentence: It is unclear whether the Vertigo that appears in the Savage Land is another clone or indeed the original Vertigo, though it appears that the original Vertigo never left the Savage Land and does not have any ties with the Marauders.
Split into simpler sentences: It is unclear whether the Vertigo that appears in the Savage Land is another clone or indeed the original Vertigo. It appears the Savage Land Vertigo never left the Savage Land and does not have any ties with the Marauders.