Is it possible for the deal with the same or better conditions to be signed after Bush's departure from Office? Sure it is possible.
How probable is for the deal with the same or better conditions to be signed after Bush's departure from Office? Low probability.
The first instance, Bush is a co-author the deal so he has the extra motivation to use his clout.
Secondly Obama has strong convictions against the deal. He made several amendments to the Hyde Act. He is expected to win by a landslide. Being the first African-American to be the President, he exudes charisma, comparable to Bill Clinton or John Kenndy. So he would be a much stronger President and he would impose much toughter conditions than a weak Bush. More over Democrats relative to Republicans are more hawkish on nuclear proliferation.
So our best bet lies with Bush. Advani's claims that he will re-negotiate the terms of the agreement are just gas - fully knowing that he is destined to lose.
