Yes, all had not yet been revealed which could answer our questions—the bulk of which now seems to have been disclosed?!? I’ve spent a good amount of time reading up on the BSG Wiki! I will now correct my speculation with apparent fact:
1 – I don’t know where I thought I read about such a long Cylon evolution—not so, all Cylon “evolution” has occured within one generation (under 50 years)
2 – All Skin-jobs are PLANTS
Officially, (from BSG Wiki) no Humanoid Cylon was ever a real boy… (or girl)
3 – The Centurions “used” the Ancient Cylons (the 13th Tribe) to achieve their God-directed purpose which was to REPLACE all of humanity (since they believed they are an improvement… this was passed on to the Humanoid Cylons, though Ellen “hoped” their mercy would prevail—also, needing humans to procreate doesn’t hurt either). At that time the “Final 5” were NOT RELATED in any way to the Centurions (which the 12 Tribes had created 52 years ealier).
*** It is unclear if the Centurions are actually still in any way related to the Skin-job Cylons. Since the Ancient Cylons (who left for Earth 2000 years before the Colonists had to leave Kobol) are the ones who created the Skin-jobs. The original Centurions had nothing to do with it—the closes they came were the “hybrids” which fly the baseships. My 2 theories are that the “Final 5” created either “physiological copies” of the themselves OR some sort of “Centurion/Ancient hybrid”—its not clear if the final 5 posses the same physiological superiority as the 7 models, or if the Skin-jobs are “improvements” on the Ancient Cylons!
NOTE that the Skin-jobs blocked sentience in the Centurions so as to prevent any kind of uprising (like they did against the humans)—hypocrites!!!
Its all really twisted! (developing on BSG’s prevailing theme of eternal return)... History Repeating…