Time-series prediction/decomposition:
No de-trending for non-count series: Intensive quantities e.g. probability density do not need de-trending (normalization).
Standard univariate time-series model, as implemented in R forecast
package {Hyndman2008}.
Multivariate time-series with black box model, as deployed in Uber {Laptev2017}.
X-13ARIMA-SEATS, a seasonal adjustment software developed by the United States Census Bureau.
Uncertainty in time-series models are often presented as 95% CI band, as in {Hanna2017}.