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Moving average or time series what it is but to have a look on history is always a previlage.
there are techniques, but i think both Trend Analysis & Time-series method are primarily rely on historical time series data
Time-series method.
Its trend projection
There are many methods for forecasting such Extrapolation of the trend , time series and Method the slightest squared MMC
http://www.poms.ucl.ac.be/etudes/notes/prod2100/cours/Part%206-Forecast.pdf
Extrapolation of the trend ( used in the stage of prediction before stage of planning)
We can say for instance ( Incremental Budgeting ) , Where it's relies primarily on Historical data with some adjustments.
Moving average