[1] - This eventually leads Shanoa to inherit the Stellar Sword, which belonged to Daniela's grandfather Maxim. The sword would then pass unto Shanoa's descendants, until it reached Eric Lecarde through his wife.
[2] - As of now, Alucard's whereabouts are not defined. However, he knows where the direct descendants of Richter Belmont are.
[3] - Thanks to the Belmont power she had absorbed from the villagers, Albus was protected from having his will erased. If it happened to Albus, then it's very likely the same thing protecting Shanoa from being corrupted:
Albus: It would seem the blood of the holy whip's legacy makes many things possible. One of life's fortunate miracles, you might say. Betrayed by the old man, I fled with [Dominus]. In this way I had taken your place as bearer, and you were no longer at risk. Alone, I continued my research into methods of controlling [Dominus]. As you know, that Glyph's power is Dracula's as well. To this end, I required the blood of the sacred Belmont clan. Since they vanished years ago, I set out to find any traces of their heritage.
Shanoa: ...The villagers.
Albus: Exactly. Fate drew them to the village...all thirteen of that line. I studied their blood with great diligence... In the end, even that power wasn't enough to contain [Dominus], and the Glyph consumed me.
Shanoa: ...But with your body gone, your spirit remains--absorbed into the Glyph. And now, that soul dwells within me, alongside the power of [Dominus].
Albus: By all accounts, [Dominus] should have overpowered and erased my will. However, the villager's power courses through you, and that tethered me here.
[4] - In the ending of OoE, it's said all records of Ecclesia "vanished in the mists of time". They vanished because Shanoa was the one to retrieve all this research and put it to use in the glyph she forged. However, there is one last object from Ecclesia that will surface...
[5] - This is canon; Dominus is, according to Barlowe and Shanoa, a glyph of ultimate destruction, and "no less could ever rid the world of Dracula."
[6] - The Alucard Spear was created to compliment the power of the Vampire Killer. But its creation will need a post for itself, since it deals with how the whip got to the Morris and why were the Lecardes chosen to guard both the spear and the secret to unlock the whip.
[7] - Nostradamus' prophecy states that the King of Terror will be revived in the "seventh month". So, July = Julius.
[8] - The existence of the Belmonts was a complete secret from everyone, including Jonathan. Only the highest ranking members of the Church knew about Wygol. Jonathan was aware that a Belmont had to appear to take the whip before 1999 thanks to Wind's reveal of the prophecy, but he was not allowed to know about the Belmonts before this.