I can see that happening, but I also could see it moving much faster since the Lannister's position is so significantly weakened.

I think Jaime is not long for this world. I think we see one last good fight from him-- almost certainly vs. the battle axe guy in a trial by combat. It's funny, because the root of my speculation is that Jaime's character's arc doesn't have too many places to go, there's no chance he's returning to Kings Landing, and saving his Daughter and going out like more or less a hero, as well his death works into the Lannister downfall arc.

Now why it's funny is because the specificity of my speculation regarding his demise is all based on the fact that his golden hand's arc has not been completed. The gold hand was cast and attached to the infamous arm of Jaime Lannister, then despite being the most baller prosthetic limb in all of Westeros and Esso combined, it was a burden in Jaime's attempt to regain his skills in combat. And clearly the little skirmish with the Dornish boarder patrol where the golden hand finally hits its stride is only rising action, not a proper arc climax.