I doubt Sydney make the top 4 and I even more strongly doubt they go back to back.
Tippett isn't exactly a top 10 league key forward so I'm not seeing Sydney as anything better than their usual top 8, probable top 6 type self they have always been.
They have lost depth. O'Keefe and Goodes are getting no younger. Mumford is breaking down. Jude Bolton out likely for the season. Tom Mitchell will come through this year into that midfield and help, Dean Towers probably finds a role off a back flank and Tim Membrey I think will with time develop into something but I don't see them as even a premiership contender next season with other clubs to pass them by.
No doubt I'll get shot down as being biased (I'm not actually a Hawthorn supporter) but I think this view is outdated and quite ignorant. Winning 2 flags in 7 years makes it hard to take the "Usual top 6-8 type self" comment seriously at all. If you want to down play that sort of success, you must really hate Collingwood's two bites at the cherry flag against St. Kilda (Collingwood were a serious force then, just making a comparison).
Fair enough in regards to Goodes and O'Keefe, we don't rely on them as heavily as we used to but they did impact the grand final significantly. I don't see them slowing down much next year, especially ROK. Mumford, however is not breaking down and Jude beat his best time trial from last preseason so he's looking as good as ever.
The likes of Hannebery, Jetta, Jack, Johnson, Reid etc have more improvement to come and McVeigh had his best season in a long time and he'll only be 28 in 2013.
While you're obviously entitled to your opinion and this is your board, I just hate reading stuff like what you typed and not seeing it get challenged at all. Dismiss our chances and you could end up looking really silly.