We don’t know how Snow or Charming would meet, but all the business over “I will always find you” should come to pass. I mean it is fate that they met right?
Actually, there could be something to this notion. I recall in the last episode of OUAT in WL, Jafar threatened Alice that he would change the past so that she and Cyrus never would’ve met.
Alice: No. You’re underestimating mine. The love that Cyrus and I have is more powerful than any magic. No matter what you do to me, you can’t change the fact that you will never feel true love for yourself….Go ahead. Do it! All the magic in the world can never make you feel what I have felt. Real love, true love, cannot be destroyed. That is why you, Jafar, will never win.
Ultimately, Jafar did not make good on his threat to change the past, but it did get me thinking that the writers might play with this idea some more on the parent show. Alice said true love cannot be destroyed. To me this sounds a lot like what Rumple said in a deleted in scene in S4 that magic cannot be destroyed (much like the physical law of conservation of energy). And since true love is greater than any magic, than how much greater would this concept be? It hints at the notion that even if Jafar had successfully changed the law of magic to alter the past, that Alice and Cyrus still would’ve met, not matter what, because they have true love. What they had could not be destroyed, even when the other laws of magic were altered.
"That’s how you know you’ve really got a home. When you leave it, there’s this feeling that you can’t shake. You just miss it." Neal Cassidy