When referencing a future Monday are both "Esther a
takuja Jumatatu" and "Esther a
nakuja Jumatatu" possible?
Could this also be translated "Esther will come on Mondays" or "Esther will be coming on Mondays"?
yes, it's akin to saying 'Esther is coming on Monday'
No, because it indicates a habitual action, so it would be more correct to say Esther atakuwa akija Jumatatu, where atakuwa is the future tense of huwa