Bands still have profiles
All the bands will still have a profile. All the related stuff that bands upload will still go into their profile.
All the lists that could be created to display info on your bands in the main section of the site, this is all still possible in JR5 too.
To show how possible that is, the Nova skin, the Flashback skin and the Sage skin have all been converted over to the JR5 skin format.
But now they're better too. The skins are dynamic. They will adjust themselves to the width of the device they are being looked at on.
So if someone is visiting your site from a mobile device, with JR5 there is no need to create a new skin for mobile anymore. It just works.