Germanicus' Invasion of Germania

Tiberius had every intention of keeping Rome permanently on the West Bank of the Rhine. But here was Germanicus flagrantly invading Germania season after season. The young man's incursions rubbed him the wrong way policy-wise and personally. Tiberius chafed as the people cheered for Germanicus. It wouldn't do to simply cancel the invasions, because they ultimately reflected well on the imperial regime. If this went on much longer, would the people call for the Dower Tiberius to be replaced by the bright and chipper Germanicus?