Board Thread:General Discussion/@comment-25070303-20150525002714/@comment-32500188-20150525213035

Angel and Anon 71 hit the nail on the head... there hasn't been as beg of a demand for her on the Japanese side at all, especially in recent years. In fact, looking up both Ring and Lui's names in Japanese within the past year, the majority of results are of folks either using it as a random tags or user names (both in and out of Japanese-based sites). Sometimes it brings up a random article, but a lot of it is either passing mentions or copy/paste from Niconico Pedia and old news articles that were released back when they were a thing. There may be like one or two comments I've seen that were on the lines of wishing they could help bring mainly Ring back (even one comment on Niconico Pedia stating they contacted Yamaha as well but got an obscure response similar to the one in the OP), but other than that, nothing of huge significance en masse.

Honestly, it makes a difference where the demand for revival is coming from. If Japan isn't highly desperate for either of the two VocaNEXT projects to resume, don't get your hopes up on the overseas fandom making up for it. It's only business savvy to go with the market that's going to draw in the most profit in the end, and in this case, it's definitely not in the west.