The oldest hybrid, the first (built by caprican cylons experimenting on humans, having created a cylon/human hybrid that can see past and future simultaneously) tries to warn humans that Tara Thrace is the harbinger of death. Still the harbinger, given that this hybrid meets her AFTER Thrace’s solo trip to past earth.
Angel Baltar appears to Baltar to give direction about what to do with Tory. Perhaps because in an earlier loop Tory does not handle the guilt of killing Galen’s wife in the same way as she does once she gets caught up with Baltar. She certainly escapes her guilt (escape velocity) by overcompensating with her belief in perfection. Or angel Baltar wants human Baltar to be influenced by Tory’s belief in perfection, perhaps as needed to reach a mindfulness as yet undisclosed sooner.
The comics have Baltar’s lineage aligned with the anti-resurrectionists. Magnus Baltar kills Pythia while trying to kill Tye’s dad. He also brings down the resurrection ship traveling to earth, but has a transformation and agrees to travel back to Kobol on 2nd coming Pythias behalf to preach the gospel of Pythia. 2nd Pythia knows exactly where to appear to prevent the two (Tye’s dad and Magnus) from killing each other (was it Magnus who dies? This would not interfere with Tye’s dad moving forward in time. If Magnus lived and Tye’s dad died in the fight, Magnus may well have lived as long as Tye’s dad would have and been (or one of his offspring) one of the original final five — perhaps agreeing to having his time line erased for the future of mankind, volunteering to allow 2nd Pythia to forever alter is history by intervening in the fight and sending him back to Kobol to preach the history/prophecies of Pythia, where he would have offspring who would be farmers and preach against resurrection. One of the conditions of “losing his present earthy life” or order to live a life without resurrection in the past, is to save his memories digitally, e.g. become a synthetic “angel Baltar”, who can be used in future missions wherever needed to direct the actions of six or his descendants.
Does anything change when the “first” server is destroyed?