Inflation usually rises around 2-3% each year. Even if this current rise in prices starts to go down, it wouldn't go back to the original prices. It is more likely that the prices would go down to what they would have been if inflation had moved in typical fashion, plus a percent or so because they didn't actually rise in a typical fashion.
Gas could be the possible exception, if we ever push for energy independence again. But that would require more than just giving oil companies the green light. The world is in for a period of suffering as we realize that we pushed too hard and too quickly for changes that will now require a step back or two, but you cannot simply flip a switch and have a coal plant back online or a nuclear plant designed and built.