For me the main reason Turbine/WB will never ever focus properlyon PvMP is becuase it is completely and uteerly fcuked up right now.
They would have to completely redesign the creep classes and address all the bugs that have been in the Moors for years and that is just for starters. The Moors was, and I quote from previous forum posts of old,
'The Moors was only sessional play'. This means they can not add anything of great value to the Creeps whatsoever. They cant even add simple things like mail box or shared vaults - its that stupid. Well designed Turbine
Turbine never expected Moors to be as popular as it is and will never invest any kind of money into it. Any and all updates to it, will be token jestures inthe vainhope to keep people interested.
The Helms Deep freep class revamp will probably kill off the Moors anyhow as they have no idea at all what it'll do for the freeps once they step into the Moors and from past experiences, make freeps even more OP then they are now.
It'll then take months and months before any minor update to some of the creep classes, by which times freeps will QQ on the forums saying we are OP and it'll get nurfed once again (past history proven this)