Along with Belle reevaluating Hook, I also think that Rumple will do the same (further down the line to be sure). Once he and Bae are back on good terms and he has Belle, I think he can let Milah’s betrayal go. Both Hook and Rumple are looking for ways to let that pain go (different pain but both over the same woman). Rumple can move on with Belle and Bae and Hook can move on as well (insert the ship of your choice here 😆 ).
Rumple and Hook are so much alike that they would make almost great friends if it wasn’t for Milah and the the hurt between them. Maybe saving Henry (and Bae’s eventual return) will help.