We can't rule out the possibility that some of the recent price increases are reversed as a more normal balance between supply and demand is re-established. In any case, for inflation to be sustained at current rates the  prices of many goods would have to keep increasing at their recent rates, not just settle at higher levels.
All of this means that there are significant uncertainties as to the persistence of the recent price pressures. They may be the start of a period of persistently higher inflation, but they could also simply be a shift in the level of prices as a result of this unique period.