UPDATE: Unfortunately, I may have been a little overoptimistic with this prediction. Despite getting Leonard back, the Spurs are still stuck at #7 with only 29 games left in the season. At this point, climbing all the way to #2 might be a reach. Fortunately, we're only 3 games back of POR in the loss column
Again, working from from the assumption that the Spurs will go on a 58-win pace the rest of the year (an ambitious, but realistic goal, given that the team is now fully healthy and has an unexacting schedule the rest of the way), the Spurs will finish with 55 wins for the season. Going by
Hollinger's Playoff Odds Projection, Memphis will finish the season with 56 wins and the Clippers with 54.
That should be enough for the Spurs to attain the #3 seed by the end of the year. And assuming we face off against Memphis in the 2nd round (a team we have historically owned), we shouldn't need HCA to beat them anyway. Hence, barring a major injury, the Spurs should be able to get back to at least the WCF this year.