They won't even consider term limits, at all, so no, this will never pass.
It goes long with my idea for the presidency too. IMO most presidents get maybe 2 years to actually do something, and that is if they care about making a difference, rather than making a name only. Of their 4 year term it goes something like this:
Year 1 - kissing special interest and financial supporter ***
Year 2/3 - actually can do something outside of what they did in year 1
Year 4 - campaign and make safe decisions to get re-elected.
And in a second term it isn't alot different, other than they spend the last year campaigning for their successor.
I think the presidency should be one 6-year term, with no option for re-election. This way they spend the first year kissing their special interest and financial supporters asses, then they can spend the next 4 actually doing something, then the last year spend it campaigning for their successor.