We do not have any plans at this moment to allow the users to choose a different theme for the site. In an effort to be able to cache more pages we felt that having user defined site skins would make this process very difficult. So in an effort to get the best performance we felt that getting rid of the site theme manager was the best way to go. I know many of you are going to grumble about this but try not to. We will in the future make new skins that we will be able to change. Possible like a holiday theme or such. But at this time we do not have any additional skins for the site.
As far as viewing 5 skins per page....Yes, in the near future you will be able to customize that and select a preset value. Something along the lines of 5,10,25 or 50 skins per page. But in order to get a feel for how the new site is going to perform we wanted to hard code it at 5 skins per page for its initial phase.