This information comes from a datamining session by the folks from IncGamers, who posted a few days ago some Patch 15 changes that would otherwise remain hidden to the player. Apparently, one of those changes includes a very interesting skill respec to magic find connection.

According to Dorjan - the person that had plunged into patch 15 datamining - players used to receive a gold and magic find bonus when an elite mob pack has been defeated. While this bonus persists with patch 15, it now only lasts until the players respecs.

Before patch 15, this was the tooltip of the buff that we get after killing Elites:

Defeating an Elite pack has increased your Magic Find and Gold Find.

Here’s how it looks now:

Defeating an Elite pack has increased your Magic Find and Gold Find. This effect ends if you change skills.

Of course, this is only on a datamining level and there is no guarantee that it will remain so at release but one can easily see what purpose is this feature to serve.

Obviously, Hell and Inferno difficulty will be most affected by this, as one can presume that Normal and Nightmare will provide much less challenge in terms of elite difficulty and thus will require little to no skill respec to be defeated. What of the end-game, however?

The thus present MF/Gold find bonus is the obvious incentive towards putting a lot of thought, testing and playtime into creating solid, flexible all-around builds that can serve the player well in any situation. This also brings additional challenge to beating the high-end and, last but not least, forces players to stick to their build order to some extent - something that the game developers have supported on multiple occasions in the past and tried to accomplish with gameplay elements such as the Nephalem Altar. Additionally, the fact that the bonus triggers after elite mob packs only is in direct support to the statement that Diablo III end game will not be about farming bosses.

Finally, one has to consider the possible negative ramifications of this mechanic. Won't such a change restrict players into using just a few optimal specs that will, ultimately, aid you through most of the encounters thus hurting the "play like you want to play" idea? If there is a great deal of randomness in the Inferno fights, doesn't it stand in opposition to the very term "optimal build" and, in turn, applies a negative effect to the player (or rather strips him of a positive bonus) who shall now be forced to respec often after all?

Source: IncGamers