τί δῆτα δρῶμεν; μητέρ’ ἦ φονεύσομεν;
‘’ (Eur. El. 967)
Sometimes the future indicative is used in a deliberative question, in the same way as the subjunctive.
ποῦ δή τήν ὀρφανίαν θήσομεν;
In which category shall I put my lack of parents? ֍
Lib. Autobiog. 1.6