I think that's a real shame, because to me heads up play is one of the real highlights of Texas
Holdem. Once you're down to 1 opponent (or even 2), the game totally changes. Bluffing, which is a very small element at full tables and still not usually a huge part of short-handed (6-person) play, becomes basically the central theme. Playing aggressive vs. passive, tight vs. loose, any and all choices are valid in heads-up play and you have to change it up constantly. It's one of my favourite elements of the game.
That's not to say that I wouldn't consider a deal if it was offered to me at a final table where the money mattered at all, but I would be disappointed if that became a "typical" ending to poker tournaments.
Fortunately, I might be mistaken but I believe poker players are highly competitive, which would cause them to err - sometimes even irrationally - on the side of risk, turning down even deals that made sense. So I am hopeful that this future will not come to pass!