A few things have to fall the Coalition's way1. They gain...

A few things have to fall the Coalition's way

1. They gain Hasluck - favoured to do so
2. They gain Corangamite - will be close - but they are closing in
3. The keep in front at Brisbane - likely, but could be lineball
4. They gain Lindsay, Greenway or Moreton

The ALP is in front by 1,100 votes in Lindsay - 83% counted...not a likely coalition win, but not impossible

The ALP is in front by 1,140 or so votes in Lindsay - 81% counted...again, not a likely coalition win, but not impossible

In Moreton, I think there could be a chance of this coming into play for the Coalition. The ALP recorded a swing of more than 12% against it, the Coalition picked up approx. 3% of that. The vote is 75% counted and the ALP is ahead by approx 1,300 votes. If postal votes favour the Coalition...this seat might be back in play too.
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All up I hope they can get to 75 seats. From what I have seen of Bob Katter and Rob Oakeshott, they would be unreliable and bombastic alliance partners. They represent a scary prospect for stability in any government formed.

If they get to 75 seats, the only sane one is Tony Windsor, and I suspect he would give the Coalition the 1 seat it would need to form a majority.

Yes, there are a few ifs & buts...but it's not altogether an impossibility.