From Rude's last post ... "... an NHL for women ..."
Just thought of a way this could work if the NHL decides to invest in a women's league: share logistics with the current NHL.
Have 8 WNHL teams or so in existing NHL cities. The women's teams travel with the men's teams. They play the same opponents as the men's teams when the men's teams are playing opponents with WNHL affiliates (e.g. NY Rangers @ Detroit Red Wings would play the night before/after the Lady Rangers @ Lady Red Wings).
One thing about pro hockey I don't know: can two games be played on the same ice on the same day thanks to the Zamboni? Maybe on Saturdays, Sundays, and holidays, there can be WNHL/NHL double headers. The ladies at noon, the men at 5:00 p.m.?
With this scheme, payroll processing, general administration, insurance, healthcare, etc. can all be folded in together.