He's just saying he wants to get as far away as possible from Murkmire and the Blackguard. I highly doubt it's a hint at the next chapter as the hints have always occurred at the end of chapters/DLC.
- Morrowind and CWC were revealed by the Prophet after you completed the Orsinium story. The book hinting at Meridia's involvement in the upcoming story is found during the last phase of the Orsinium story.
- CWC was revealed at the end of Morrowind with the final quest actually taking you there.
- Summerset was revealed by the Prognosticator after you completed the CWC story.
- More hints at Meridia's involvement in the story are also revealed after completing the Summerset story.
There were never any hints during prologue quests as it would be extremely anticlimactic.
Edited by MLGProPlayer on October 21, 2018 11:16PM
I think Pyandonea and the Coral Kingdom of Thras lay to the West (ish) of Summerset. Those would be a weird place for him to run to though since they don't seem friendly at all so far (Sea Elves and Sload).