Ah, so you think she might be on "The Costa Del Crime" then? Good thought (also about Wyn's connections).
Come to think, how did/do all the crims manage to survive for so long on the "costa Del Crime"? After all, we're both in the EU (for now...), so you'd think extradition wouldn't be a problem. However, I can think of reasons (Gibraltar?) why the Spanish authorities might not fall over themselves to help the British authorities sometimes.
Then there is Brazil: Ronnie Biggs managed to stay there for as long as he wanted, although admittedly, that was (I think) because he had a son who was born there, rather than anything else.
And I don't think Megan is likely to produce a son (or daughter) at her time of life.
Oh, that must have been great! Now, I'll be careful how I ask this
Do you think we'll be seeing her again?
But back to extradition, etc: I'm not sure she will go far actually (except for another nice holiday). After all, it appeared she wasn't living all that far away. just somewhere else on Ynys Môn that was probably somewhere that the people of Glanrafon were unlikely to go to. And although her alias was "busted", they still don't know her real name. And I suspect she's a bit arrogant, and is sure she'll get away with it, and has little fear of pursuit. And hopefully this will make her careless.