Yeah, San Antonio has played twice as many Western Conference opponents as the Clippers, so I think once their schedules swing the other way, the Spurs will come out on top in the standings. I don't see Dallas or Houston falling behind them, either. Phoenix or OKC *could* pass the Clippers, 6 games back is a big hole to come back from, but it's doable.
Toronto, Washington and Atlanta should all stay ahead, since they play the East a lot. I think Chicago will actually win more as the season goes for the same reason, so even though they're a game back right now, they'll overtake them by season's end. I don't see Milwaukee or Cleveland passing them, though.
So basically, I think the Clippers' pick will be 19.5th overall, with a very small chance of it falling to 14th. There is really no chance of them drafting 12th.
Let's say they fall to 14th (first spot out of the playoffs) and we give that a 10% chance. They then have a 1% chance of winning the lottery in that spot. I am not sure exactly how to calculate that, but I'd say our odds look like:
40% - 20th Pick
35% - 19th Pick
10% - 21st Pick
9.99% - 14th Pick
5% - 17th, 18th or 22nd
0.01% - 1st, 2nd or 3rd