Bethesda Softworks hates me and doesn't care about whether or not I've finished Oblivion yet. It seems they'll be making it completely impossible now, with the release of a full-on expansion pack, entitled Shivering Isles.
Finnish gaming magazine Pelit is reporting that Bethesda has confirmed the expansion, but reveals no details or release date.
While I can't vouch for Pelit (although it is one of the biggest Finnish gaming magazines), I can say that this news is not surprising or unbelievable. Rumors of a full expansion appear in the latest issue of Official Xbox Magazine. Additionally, it appears that ZeniMax Media (owner of Besthesda Softworks, LLC) has had the "Shivering Isles" name trademarked with the United States Patent and Trademark office since August of this year.
What I don't believe, however, is that "julkaisuajankohta" is a word. There's just no way.