Following developments overnight on the live US service Codemasters Online has decided to withhold the release of Book 8 until the patches/hotfixes can be applied.
In addition to the instances that needed to be closed it transpired that a serious issue with stuck characters has manifested rendering many players unable to move or to log in.
In order to avoid these problems we have decided to postpone the Book 8 release until we can go live with the fixes to these issues. The hotfixes for the instance bugs and the stuck characters issue are currently in test with our QA department. Working around the clock we will attempt to update to Book 8 tomorrow (subject to approval). Please note that further issues discovered on the US service may preclude us from releasing Book 8 until further hotfixes are received.
Today's scheduled maintenance will be finishing earlier than advertised.
Please watch the forums website and launcher for further updates as they become available"
(Quelle: News-Fenster im Lotro-Launcher)
Dass es massive Probleme mit B8 gab konnte man ja schon auf den US-Foren lesen.