There are two points of discussion here: the question about Jon seeing his siblings again, and the comment about Jon’s destiny lying in being a Targaryen. Let me start with the second point.
I vehemently disagree that Jon is taking a turn from Stark to Targaryen or that he’d even want to. There is no triumphant discovery of his Targaryen roots coming, no joyous claim of his “true” name and no embracing of a Targaryen identity. Jon’s entire identity is that of a Stark. Ned is the father Jon loves, idealizes and actively tries to live up to. The Starklings are the siblings he grew up with and loves. Winterfell is the only home he ever knew. To find out that Ned isn’t biologically his father isn’t going to come with any sense of validation or purpose or joy in his Targaryen heritage; it’s gonna come with a deep feeling of devastation that the man he loved so much lied to him for years.
What matters most about the parentage reveal isn’t that Rhaegar Targaryen is Jon’s bio father, it’s that Ned Stark isn’t. This gonna be devastating because Jon loved Ned so much and looked up to him so much. In Jon’s own words:
Lord Eddard Stark is my father. I will not forget him, no matter how many (
shiny mystical dragons) swords they give me.
That’s a part of the resolution to Jon’s struggle after the reveal; the realization that this statement still holds true regardless of biology. Ned is the only parent Jon ever knew and the fact that he didn’t sire Jon doesn’t make him any less his father. The truth does not change or take away from Arya being the little sister Jon misses dearly and longs to see. It does not change how Robb was his constant companion and best friend. It does not take away from the love he feels for Bran and Rickon and Sansa. These bonds of affection are still as genuine and as significant as they ever were, even with the parentage reveal. So Jon is going to see his siblings again but it’s not going to be a meeting that enforces a split between him and the rest of the Starks, but rather one that reaffirms what they are to him: his siblings.
In terms of Jon’s destiny and how it relates to his heritage, it’s not like finding out that he was conceived for a prophecy is gonna
be a joyful discovery for Jon, neither is the realization of how many
people – including his grandfather, uncle, and mother – paid the price
so that Rhaegar could acquire a prophecy child.
That’s the make of an existential crisis, not a prelude to Jon turning
away from his Stark identity and embracing a Targaryen one as the prerequisite of being a savior. Which is why another part of the resolution in Jon’s story lies in the concept of destiny not being dependent on blood or heritage. Jon might have a great deal of magical affinity due to his blood, but his destiny does not lie in him being a Targaryen. Jon did not need to be a super special Targ to set his mind to fighting the Others, he did not need a prophecy to point him to the real fight or to make him do his damndest to save lives. He was already doing that on his own. Jon isn’t fighting because Rhaegar had him for a prophecy, he is fighting because Ned raised him to be a man who fights for life. He is fighting because that’s the right thing to do. Not only that but I’m really resistant to any theory that builds on the idea that some sort of special blood is a requirement for saviordom.
Viserys and Rhaegar had the same blood as Dany, but there is a reason they aren’t heroes and she is.
Tyrion doesn’t have a drop of dragon blood (please don’t mention the Tyrion Targ theory, that’s bullcrap), but he is still going to be both a dragonrider and one of the saviors of Westeros. Dragonriding isn’t even something that’s exclusive to the Targaryens in the first place. The moral here is that you don’t have to have super special blood (or name) to be a hero, and having super special blood isn’t enough to make you one. ASOIAF is a series that strongly advocates the importance of our choices and how they shape who we are, not what our parentage makes us to be.
That’s the whole point.
If you’re interested, I’ve talked more extensively about the effect of the parentage discovery on Jon, how it connects to his role in the War for the Dawn, and the different roles Ned and Rhaegar play in regards to his destiny
here and here. Hope that helps!




