We sometimes get 2 hours notice, I was in a similar position to you, however I hadn't bought it yet, I managed to get it fully upgraded and starting the 'new' quest by the Sunday. If Kaz returns or the faerie quest that has been hinted at comes along in the next few weeks I won't be ready but it will come along when I am, I'm ok with that, I suppose we all get to that point at some point, where some quests come along on Thursdays some don't.