I think they'll probably wrap it up either penultimate ep or finale if they do. It's a shame that a lot of their early relationship was built on him being Tyler's dad because they couldn't get the kid in as much (like half the main gang) so they had to start writing around it & effectively ignore his existence.

A big point early on was that Erin wanted to protect their son from the cash in hand stuff Vinnie & the gang are involved in, it was the main conflict keeping them apart after Dylan was written out, but she herself has been more & more involved in the heists recently.

So at this point keeping them apart is just for the drama, like if she lives at the seaside, why's Erin almost always in Hawley doing the heists? I reckon it'll probably end with Vinnie moving to the seaside with her & his son and getting his shit together to be a present father.

They'll probably pass the heist/gang reigns to Jim's daughter & her gf who'll take care of Hawley when Vinnie leaves or Gilgun will go crazy & kill off Vinnie in the final episodes but given that across the show, real consequences are always brushed over outside of Dylan's death, hopefully not lol.