We usually list things we would like to see on these ships, but if we found ourselves in the top chair of a cruise-line, we would ultimately do the very things that are already being done.
As a single guy, I would just love for the ships to cater to the solo traveler. We could really play up the "boy meets girl" thing. Thing is...the ships already have singles parties...and I'm usually the only one to show up.
So...to be honest...I would continue what my predecessors have accomplish. Their policies have worked and made money.
Making money the solo reason the lines are in business, which is natural order of things since....cruiselines that can't make a huge profit have gone extinct.