This seems to be following much the pattern of the last AH2 beta.
I suspect if Hitech put up an MOTD stating AH2 will cease to exist in 2 weeks on some date chiseled in stone, with directions to visit this forum for any questions. There would be a stampede to find out if players PC\laptops will run the new game. And a cadre begging and demanding an AH2 arena be kept online for those who either cannot afford to upgrade or those who would need to wait for a while to upgrade. And for their inconvenience after being such good customers, they would want it free to play.
It took me the last 6 months to get my squad to stop telling me AH3 wouldn't ship until 2025 and to leave them alone. They didn't care about the screen shots I showed them, or anything I told them about how wonderful things were. They only cared about the go live date chiseled in stone and telling me everything they didn't like about what they thought AH3 would be. I suppose to then tell Hitech for them. Half of them figured AH3 would be the end of their Aces High career anyway, because the new graphics would kill their PCs. After getting them to let me see their graphics card specs, it wasn't as bad as they were dooming.
More than anything else which has to be over come is the doom perceptions. Foremost is being unable to meet the new hardware requirements and then, the fear of funky old stale game play mechanisms being carried over from AH2 that is being perceived visa unfounded rumors. Along with the gleeful help from a small cadre of unhappy cranks personal mad at Hitech playing Debbie downers on steroids at every opportunity.
I have heard and seen this kind of doom speculation for the last 18 months out of other wise happy mature players of long standing in response to the vacuume created by the uncertainty of the pending change. None of them found any solace in my standard response. Since august 2014 with the closed alpha, Hitech has told no one what the finished product would look like, play like, or ultimately what new object toys will be shipped with the new game.
I saw the MOTD, and not many have shown up since there is no impending loss of fun in two weeks.