There will be "limited service interruption" during the server changeover which sees NA and EU groups combine to become the LOTRO Global Service.
While servers themselves won't be merged you will need to transfer characters which will be done free of charge and includes all items etc transitioning seamlessly, says Turbine. European billing methods will be expanding but also need to be re-entered.
"After 4 years of successful publishing and operations we are proud to be handing over a vibrant and healthy service to Turbine," said Codemasters Online. Turbine switched LOTRO from subscription-based to free-to-play and revenues tripled for the MMO.