The market will top at some point in the future, at a level higher than that of the last bottom. This top will last until the trend changes again, which will be sometime after it tops.
All of this is predicated on the assumption that the market has not already topped. If the market has already topped, then it will bottom at some point in the future, at a level lower than that at which it last topped.
This last, of course, is predicated on the assumption that the market has not yet already both topped and bottomed. If the market has topped and bottomed, then it should top again at some point in the future, at a higher level than that of the last bottom.
Etc.