Well, this depends on a lot of factors that we can't foresee or control.
So who knows?
If I had to venture a guess though, lets see...
Right now where I live gas is $1.84 (I know

). So I would think in that time, even if it goes up another dollar per gallon, we'd still be under 3
dollars.
I can't imagine it getting back up to above 3 dollars a gallon again without some unforeseen circumstance.