I though that was what the OP meant when he wrote the "introductory phase is over".
I haven't flown ARN-CPH during the last month so I don't know what the current status is, but free coffee and tea is only a temporary thing and will be charged for in the future.
When I travelled ARN-CPH last time, a month ago, I asked the FA for how long the "introductory phase" would last, she said she didn't know but guessed for about another month.

So enjoy it as long as it lasts...