The fact that there are no more ENT profics coming has a very simple reason - publishers. They don't give a rats arse about the fans opinions or their visibility. They have a business to run and the only criterium for publishing a book is, 'will it sell?'.
The ENT books didn't sell very good for two reasons. The writing of the TV series was rather inconsistent, so the books were built on a very shaky basis to begin with and the second, most important reason for not selling is that all the relaunch books were mediocre at best. TGTMD was utterly rubbish.
That's why I think that lobbying for more ENT profic is nothing more but begging for more mediocrity, which isn't very logical.
"Are you planning to excavate this rectangular area?"
"Yep, I'm diggin' a hole, T'Pol"