Any process that activates or increases the frequency, rate or extent of the process in which oskar mRNA is transported to, or maintained in, the oocyte pole plasm.
Synonyms:
exact_synonym:
positive regulation of oocyte pole plasm oskar mRNA localization; positive regulation of pole plasm oskar mRNA localisation; up regulation of pole plasm oskar mRNA localization; upregulation of pole plasm oskar mRNA localization
narrow_synonym:
activation of pole plasm oskar mRNA localization; stimulation of pole plasm oskar mRNA localization