In my opinion it's really hard from an American perspective to understand the Japanese mindset. Americans (probably Canadians too, etc.) are known for taking the heat and growing stronger because of it. Take a licking and keep on ticking type scenario, etc.
Americans (probably Canadians too, etc.) thrive on "the battle" and that's why sports are a huge part of the American psyche and why sports have a huge American participation too no doubt. And therefore it's very disconcerting when Roland Japan decides to "pull the plug" and run for the hills. What are they afraid of anyway? Their own shadow perhaps?? I realize the Japanese have a propensity to "shun" conflict but if you're going to survive (especially in the 21st century) wouldn't it make sense to "get over your fear of foreigners" and indeed join the 21st century? I'm just saying. If you can't muster the fortitude to go the "extra mile" in today's world and in today's economy it's probably a sure sign that your company is either on the verge of being torpedoed or of possibly going 'belly up' in the not too distant future. If Roland keeps burying their heads in the sand other keyboard companies will see that weakness and they will then seize upon the opportunity to overshadow Roland and proceed to take market share away from them.
One other possible scenario for Roland's continued silence is they already know that further Fantom G development is "history" and so why support a product that, for all intents and purposes, is 'dead in the water' and will soon sink to the bottom of the ocean in a sea of forgetfulness? Fantom G?? What's that?

A workstation keyboard? Really?? Never heard of it.

The Fantom G conveniently mothballed in a keyboard museum somewhere and never to be mentioned or heard from again.

Next in line please?
So in theory, if Roland has ultimately decided to be absolutely "silent" about the Fantom G it may only be because they are busy concentrating on their next latest/greatest effort and indeed the Fantom G has been relegated to mothball status and there will be NO further development on it. If that's indeed the case, then maybe when they come out with their next top of the line workstation they will once again resume communications with all of us here at Roland Clan and we will all be happy campers once again. Until, the next cycle occurs.

Time will tell.
If Roland does indeed resume with their communications when the Fantom G successor is released and then Roland goes "silent" once again, it could be a sure indication that Roland's Fantom G successor has also then been "mothballed" with no further development and the vicious cycle will once again repeat itself. Until the Fantom G's successor's successor come out..
If that's indeed going to be the scenario i.e. when Roland does go "silent" it will then be the tale tell indicator that the keyboard will no longer be supported with any more OS updates or any future hardware support, etc., which tells people = TO SELL THE KEYBOARD AS QUICKLY AS POSSIBLE to get the most money out of it before it loses any more of its value on the open market.

So if a Fantom G successor comes out and Roland is once again all "lovey dovey" and gushing with support (and communicating) with their customers on this (and other) Forums and then suddenly all we hear are "crickets" again - SELL YOUR KEYBOARD ASAP!!!
It really is heartbreaking when the company you do business with "shines you on" repeatedly. I can fully understand why huge amounts of former Roland customers are "jumping ship" and heading on over to Yamaha or elsewhere like Open Labs, etc. Consumers aren't dumb. They know that if a company "treats them right" and "helps" them by communicating "with" them and "supports" them on a 'continual' basis - it leads to, more often than not, a lasting relationship with that particular company. Why Roland doesn't yet understand this concept is beyond me. Perhaps they simply don't care if Yamaha or other keyboard companies pull the rug out from under them?? Or maybe Roland has grown "tired" and will indeed go "belly up" in the not too distant future perhaps?? Time will tell I reckon, right?

I would hate to see that happen though. The more competition the better, needless to say.