ATTN Tom or Jozi: Question about expirations after the advent of free mode (Little Upsilon)

What happens when the countries or enterprises of paying members expire now that free mode is introduced?

Can we continue playing them, just under the limitations of free accounts?

Also, suppose I want to start on a new world but don't have the coins at the moment. Can I play as a free account there while being a paying member for other worlds?