It's true, Drachen Fire isn't listed when you click on attractions. Then again, neither is Ireland, and we know that's opening this season.
Now, I hate seeing that poor blue coaster gathering cob-webs, but I also don't think it will come back without some serious modifications (I liked riding FOF with OTRs, and I didn't like riding this). Still, I won't rule it out just because the web-site doesn't have a listing.