I'm not sure if it is really going to show only men. According to these pictures (illustrating an article about the factory where the monument is being prepared so it seems quite reliable) there are going to be 2 female figures.
http://www.strefabiznesu.gazetalubuska.pl/artykul/w-nowosolskim-malpolu-powstaje-pierwszy-na-swiecie-pomnik-wikipediiThe original project also included two women. So there is hope :)
I'm going to attend the unveiling as an official representative of Wikimedia Poland so I will do an on-site inspection and I will let you know ;)