Maybe we are talking at cross purposes. The 1998 volume of Thor consists of 85 issues. The first 79 are mostly a long story by Jurgens with multiple strands. I think it is worth reading but you will not find many references to an upcoming Ragnarök.
The last six are a Disassembled tie-in series about Ragnarök by Oeming which was the lead-in to the new Marvel status-quo dominated by the non-standard Avengers roster by Bendis. The jump from one writer to another is quite sudden and IMO very forced. Jurgens wasn't leading up to a Ragnarök event. His story was over.
Thor was cancelled after Disassembled. That seemed to be why Oeming's story was written. From my perspective it was a rushed job. Thor wasn't published again for three years when JMS was brought in as the main writer from the upcoming movie, to relaunch the books and revive the dead characters.
I have to agree 100% with JK. Jurgens reigning was great but Oeming Ragnarok was one of the worst Thor stories I've ever read. It started to me the fall from grace of Thor as a respected powerhouse in the Marvel Universe. I mean having Captain America in Asgard fighting the Fenris Wolf and intimidating Thor enemies was inconceivable, before when writers like Roy Thomas, Lee himself and others wrote Thor, the Asgardians and their other races were kept apart from the rest of the Marvel heroes and the power levels were very separate between Asgardians and human heroes, only Hulk could approximate the strength on those levels. Thor 199 and 200 did for me the best Ragnarok story ever told.
Sorry I haven't been posting on the readathon thread. Life has gotten in the way but I intend to continue shortly.
Firestorm and Thor
Thor #234 Apr 1975
"O, Bitter Victory!"
Thor and a group of commandos sneak into Loki's camp at night, only to be captured;
When General Sawyer realizes that they've been captured,
he realizes the only option left is a nuclear strike;
At Avengers Mansion, Iron Man and Firelord team up to break the barrier;
Firelord flies to lead the army and rescue Thor;
Thor challenges Loki to one-on-one combat with no weapons or spells.
Script by Gerry Conway, pencils by John Buscema, inks by Joe Sinnott
The Mighty Mightor Vs. The Mighty Thor
Batman and Thor
"Ultimatum at the United Nations!"