So, thoughts on the Season in all
Its going to be hard next seasons to juggle the three different locales, Wessex definitely started dragging the latter half of the Season and I'm not sure how well they can keep tying it into the series from here on out. Obviously some sort of retribution will be called for the destruction of the settlement. Ecbert has his plans and Princess crazy has her delusions, but I don't think its going to be as interesting going forwards than it was earlier this season.
Back in Scandinavia, I'm getting a little tired of Aslaug, she was never particularly popular and she certainly isn't on par with Lagertha. Þorunn is also gone but she also wasn't really a favorite of mine. I imagine we will be spending even less time there with Siggy dead, Þorunn MIA, and Aslaug perpetually boring, so maybe more on the road material in Wessex and Paris.
Paris certainly livens up a bit more with Rollo confirmed as THE Rollo, and I'm not convinced he's ready to take up arms against his brother again, we could be in for fun stuff when the others return to Francia. Count Odo being....kinky... seemed a little out there, the Emperor lived up to my expectations, and then there's Gisla. I don't care for her 99% because of the accent, its just horrendous. I doubt she and Rollo have a happy marriage.
The last scene was a little underwhelming compared to the rest of the episode. We knew that Ragnar was aware of Floki being Athelstan's murderer so it wasn't a huge reveal.
I think overall the season got weaker after they left Mercia and Wessex, but it wasn't a huge downward turn.